forked from Minki/linux
mmc: sdhci-of-arasan: Fix kernel-doc warnings
Modify code to fix the warnings reported by kernel-doc for better documentation. Signed-off-by: Manish Narani <manish.narani@xilinx.com> Link: https://lore.kernel.org/r/1586195015-128992-7-git-send-email-manish.narani@xilinx.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Manish Narani
Ulf Hansson
parent
16ada730a7
commit
4908460ef1
@ -73,13 +73,13 @@ struct sdhci_arasan_soc_ctl_field {
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/**
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* struct sdhci_arasan_soc_ctl_map - Map in syscon to corecfg registers
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*
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* It's up to the licensee of the Arsan IP block to make these available
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* somewhere if needed. Presumably these will be scattered somewhere that's
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* accessible via the syscon API.
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*
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* @baseclkfreq: Where to find corecfg_baseclkfreq
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* @clockmultiplier: Where to find corecfg_clockmultiplier
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* @hiword_update: If true, use HIWORD_UPDATE to access the syscon
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*
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* It's up to the licensee of the Arsan IP block to make these available
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* somewhere if needed. Presumably these will be scattered somewhere that's
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* accessible via the syscon API.
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*/
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struct sdhci_arasan_soc_ctl_map {
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struct sdhci_arasan_soc_ctl_field baseclkfreq;
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@ -99,7 +99,8 @@ struct sdhci_arasan_clk_ops {
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};
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/**
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* struct sdhci_arasan_clk_data
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* struct sdhci_arasan_clk_data - Arasan Controller Clock Data.
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*
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* @sdcardclk_hw: Struct for the clock we might provide to a PHY.
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* @sdcardclk: Pointer to normal 'struct clock' for sdcardclk_hw.
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* @sampleclk_hw: Struct for the clock we might provide to a PHY.
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@ -125,15 +126,18 @@ struct sdhci_arasan_zynqmp_clk_data {
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};
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/**
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* struct sdhci_arasan_data
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* struct sdhci_arasan_data - Arasan Controller Data
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*
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* @host: Pointer to the main SDHCI host structure.
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* @clk_ahb: Pointer to the AHB clock
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* @phy: Pointer to the generic phy
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* @is_phy_on: True if the PHY is on; false if not.
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* @has_cqe: True if controller has command queuing engine.
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* @clk_data: Struct for the Arasan Controller Clock Data.
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* @clk_ops: Struct for the Arasan Controller Clock Operations.
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* @soc_ctl_base: Pointer to regmap for syscon for soc_ctl registers.
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* @soc_ctl_map: Map to get offsets into soc_ctl registers.
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* @quirks: Arasan deviations from spec.
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*/
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struct sdhci_arasan_data {
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struct sdhci_host *host;
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@ -147,7 +151,7 @@ struct sdhci_arasan_data {
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struct regmap *soc_ctl_base;
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const struct sdhci_arasan_soc_ctl_map *soc_ctl_map;
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unsigned int quirks; /* Arasan deviations from spec */
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unsigned int quirks;
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/* Controller does not have CD wired and will not function normally without */
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#define SDHCI_ARASAN_QUIRK_FORCE_CDTEST BIT(0)
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@ -183,14 +187,16 @@ static const struct sdhci_arasan_soc_ctl_map intel_lgm_sdxc_soc_ctl_map = {
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/**
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* sdhci_arasan_syscon_write - Write to a field in soc_ctl registers
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*
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* @host: The sdhci_host
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* @fld: The field to write to
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* @val: The value to write
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*
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* This function allows writing to fields in sdhci_arasan_soc_ctl_map.
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* Note that if a field is specified as not available (shift < 0) then
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* this function will silently return an error code. It will be noisy
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* and print errors for any other (unexpected) errors.
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*
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* @host: The sdhci_host
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* @fld: The field to write to
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* @val: The value to write
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* Return: 0 on success and error value on error
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*/
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static int sdhci_arasan_syscon_write(struct sdhci_host *host,
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const struct sdhci_arasan_soc_ctl_field *fld,
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@ -420,9 +426,10 @@ static const struct sdhci_pltfm_data sdhci_arasan_cqe_pdata = {
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/**
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* sdhci_arasan_suspend - Suspend method for the driver
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* @dev: Address of the device structure
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* Returns 0 on success and error value on error
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*
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* Put the device in a low power state.
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*
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* Return: 0 on success and error value on error
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*/
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static int sdhci_arasan_suspend(struct device *dev)
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{
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@ -463,9 +470,10 @@ static int sdhci_arasan_suspend(struct device *dev)
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/**
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* sdhci_arasan_resume - Resume method for the driver
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* @dev: Address of the device structure
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* Returns 0 on success and error value on error
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*
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* Resume operation after suspend
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*
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* Return: 0 on success and error value on error
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*/
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static int sdhci_arasan_resume(struct device *dev)
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{
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@ -514,16 +522,16 @@ static SIMPLE_DEV_PM_OPS(sdhci_arasan_dev_pm_ops, sdhci_arasan_suspend,
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/**
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* sdhci_arasan_sdcardclk_recalc_rate - Return the card clock rate
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*
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* @hw: Pointer to the hardware clock structure.
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* @parent_rate: The parent rate (should be rate of clk_xin).
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*
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* Return the current actual rate of the SD card clock. This can be used
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* to communicate with out PHY.
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*
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* @hw: Pointer to the hardware clock structure.
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* @parent_rate The parent rate (should be rate of clk_xin).
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* Returns the card clock rate.
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* Return: The card clock rate.
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*/
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static unsigned long sdhci_arasan_sdcardclk_recalc_rate(struct clk_hw *hw,
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unsigned long parent_rate)
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{
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struct sdhci_arasan_clk_data *clk_data =
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container_of(hw, struct sdhci_arasan_clk_data, sdcardclk_hw);
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@ -541,16 +549,16 @@ static const struct clk_ops arasan_sdcardclk_ops = {
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/**
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* sdhci_arasan_sampleclk_recalc_rate - Return the sampling clock rate
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*
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* @hw: Pointer to the hardware clock structure.
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* @parent_rate: The parent rate (should be rate of clk_xin).
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*
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* Return the current actual rate of the sampling clock. This can be used
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* to communicate with out PHY.
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*
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* @hw: Pointer to the hardware clock structure.
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* @parent_rate The parent rate (should be rate of clk_xin).
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* Returns the sample clock rate.
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* Return: The sample clock rate.
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*/
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static unsigned long sdhci_arasan_sampleclk_recalc_rate(struct clk_hw *hw,
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unsigned long parent_rate)
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{
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struct sdhci_arasan_clk_data *clk_data =
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container_of(hw, struct sdhci_arasan_clk_data, sampleclk_hw);
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@ -568,14 +576,14 @@ static const struct clk_ops arasan_sampleclk_ops = {
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/**
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* sdhci_zynqmp_sdcardclk_set_phase - Set the SD Output Clock Tap Delays
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees: The clock phase shift between 0 - 359.
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*
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* Set the SD Output Clock Tap Delays for Output path
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees The clock phase shift between 0 - 359.
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* Return: 0 on success and error value on error
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*/
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static int sdhci_zynqmp_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
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{
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struct sdhci_arasan_clk_data *clk_data =
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container_of(hw, struct sdhci_arasan_clk_data, sdcardclk_hw);
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@ -640,14 +648,14 @@ static const struct clk_ops zynqmp_sdcardclk_ops = {
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/**
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* sdhci_zynqmp_sampleclk_set_phase - Set the SD Input Clock Tap Delays
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees: The clock phase shift between 0 - 359.
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*
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* Set the SD Input Clock Tap Delays for Input path
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees The clock phase shift between 0 - 359.
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* Return: 0 on success and error value on error
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*/
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static int sdhci_zynqmp_sampleclk_set_phase(struct clk_hw *hw, int degrees)
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{
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struct sdhci_arasan_clk_data *clk_data =
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container_of(hw, struct sdhci_arasan_clk_data, sampleclk_hw);
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@ -712,10 +720,11 @@ static const struct clk_ops zynqmp_sampleclk_ops = {
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/**
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* sdhci_versal_sdcardclk_set_phase - Set the SD Output Clock Tap Delays
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees: The clock phase shift between 0 - 359.
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*
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* Set the SD Output Clock Tap Delays for Output path
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees The clock phase shift between 0 - 359.
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* Return: 0 on success and error value on error
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*/
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static int sdhci_versal_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
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@ -783,10 +792,11 @@ static const struct clk_ops versal_sdcardclk_ops = {
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/**
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* sdhci_versal_sampleclk_set_phase - Set the SD Input Clock Tap Delays
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees: The clock phase shift between 0 - 359.
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*
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* Set the SD Input Clock Tap Delays for Input path
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*
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* @hw: Pointer to the hardware clock structure.
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* @degrees The clock phase shift between 0 - 359.
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* Return: 0 on success and error value on error
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*/
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static int sdhci_versal_sampleclk_set_phase(struct clk_hw *hw, int degrees)
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@ -902,6 +912,9 @@ static int arasan_zynqmp_execute_tuning(struct mmc_host *mmc, u32 opcode)
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/**
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* sdhci_arasan_update_clockmultiplier - Set corecfg_clockmultiplier
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*
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* @host: The sdhci_host
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* @value: The value to write
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*
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* The corecfg_clockmultiplier is supposed to contain clock multiplier
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* value of programmable clock generator.
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*
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@ -913,8 +926,6 @@ static int arasan_zynqmp_execute_tuning(struct mmc_host *mmc, u32 opcode)
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* - The value of corecfg_clockmultiplier should sync with that of corresponding
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* value reading from sdhci_capability_register. So this function is called
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* once at probe time and never called again.
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*
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* @host: The sdhci_host
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*/
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static void sdhci_arasan_update_clockmultiplier(struct sdhci_host *host,
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u32 value)
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@ -941,6 +952,8 @@ static void sdhci_arasan_update_clockmultiplier(struct sdhci_host *host,
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/**
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* sdhci_arasan_update_baseclkfreq - Set corecfg_baseclkfreq
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*
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* @host: The sdhci_host
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*
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* The corecfg_baseclkfreq is supposed to contain the MHz of clk_xin. This
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* function can be used to make that happen.
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*
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@ -952,8 +965,6 @@ static void sdhci_arasan_update_clockmultiplier(struct sdhci_host *host,
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* - It's assumed that clk_xin is not dynamic and that we use the SDHCI divider
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* to achieve lower clock rates. That means that this function is called once
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* at probe time and never called again.
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*
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* @host: The sdhci_host
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*/
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static void sdhci_arasan_update_baseclkfreq(struct sdhci_host *host)
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{
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@ -1017,10 +1028,10 @@ static void arasan_dt_read_clk_phase(struct device *dev,
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/**
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* arasan_dt_parse_clk_phases - Read Clock Delay values from DT
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*
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* Called at initialization to parse the values of Clock Delays.
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*
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* @dev: Pointer to our struct device.
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* @clk_data: Pointer to the Clock Data structure
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*
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* Called at initialization to parse the values of Clock Delays.
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*/
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static void arasan_dt_parse_clk_phases(struct device *dev,
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struct sdhci_arasan_clk_data *clk_data)
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@ -1191,14 +1202,15 @@ MODULE_DEVICE_TABLE(of, sdhci_arasan_of_match);
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/**
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* sdhci_arasan_register_sdcardclk - Register the sdcardclk for a PHY to use
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*
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* @sdhci_arasan: Our private data structure.
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* @clk_xin: Pointer to the functional clock
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* @dev: Pointer to our struct device.
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*
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* Some PHY devices need to know what the actual card clock is. In order for
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* them to find out, we'll provide a clock through the common clock framework
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* for them to query.
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*
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* @sdhci_arasan: Our private data structure.
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* @clk_xin: Pointer to the functional clock
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* @dev: Pointer to our struct device.
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* Returns 0 on success and error value on error
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* Return: 0 on success and error value on error
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*/
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static int
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sdhci_arasan_register_sdcardclk(struct sdhci_arasan_data *sdhci_arasan,
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@ -1240,14 +1252,15 @@ sdhci_arasan_register_sdcardclk(struct sdhci_arasan_data *sdhci_arasan,
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/**
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* sdhci_arasan_register_sampleclk - Register the sampleclk for a PHY to use
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*
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* @sdhci_arasan: Our private data structure.
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* @clk_xin: Pointer to the functional clock
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* @dev: Pointer to our struct device.
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*
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* Some PHY devices need to know what the actual card clock is. In order for
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* them to find out, we'll provide a clock through the common clock framework
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* for them to query.
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*
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* @sdhci_arasan: Our private data structure.
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* @clk_xin: Pointer to the functional clock
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* @dev: Pointer to our struct device.
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* Returns 0 on success and error value on error
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* Return: 0 on success and error value on error
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*/
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static int
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sdhci_arasan_register_sampleclk(struct sdhci_arasan_data *sdhci_arasan,
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@ -1289,10 +1302,10 @@ sdhci_arasan_register_sampleclk(struct sdhci_arasan_data *sdhci_arasan,
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/**
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* sdhci_arasan_unregister_sdclk - Undoes sdhci_arasan_register_sdclk()
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*
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* @dev: Pointer to our struct device.
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*
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* Should be called any time we're exiting and sdhci_arasan_register_sdclk()
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* returned success.
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*
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* @dev: Pointer to our struct device.
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*/
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static void sdhci_arasan_unregister_sdclk(struct device *dev)
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{
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@ -1307,6 +1320,10 @@ static void sdhci_arasan_unregister_sdclk(struct device *dev)
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/**
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* sdhci_arasan_register_sdclk - Register the sdcardclk for a PHY to use
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*
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* @sdhci_arasan: Our private data structure.
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* @clk_xin: Pointer to the functional clock
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* @dev: Pointer to our struct device.
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*
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* Some PHY devices need to know what the actual card clock is. In order for
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* them to find out, we'll provide a clock through the common clock framework
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* for them to query.
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@ -1319,10 +1336,7 @@ static void sdhci_arasan_unregister_sdclk(struct device *dev)
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* to create nice clean device tree bindings and later (if needed) we can try
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* re-architecting SDHCI if we see some benefit to it.
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*
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* @sdhci_arasan: Our private data structure.
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* @clk_xin: Pointer to the functional clock
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* @dev: Pointer to our struct device.
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* Returns 0 on success and error value on error
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* Return: 0 on success and error value on error
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*/
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static int sdhci_arasan_register_sdclk(struct sdhci_arasan_data *sdhci_arasan,
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struct clk *clk_xin,
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