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mmc: tmio, renesas-sdhi: add max_{segs, blk_count} to tmio_mmc_data

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Allow TMIO and SDHI driver implementations to provide values for
max_segs and max_blk_count.

A follow-up patch will set these values for Renesas Gen3 SoCs
the using an SDHI driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Ai Kyuse <ai.kyuse.uw@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Yoshihiro Shimoda 2017-06-21 16:00:27 +02:00 committed by Ulf Hansson
parent 6bba406445
commit 603aa14d3d
4 changed files with 9 additions and 3 deletions
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2
drivers/mmc/host/renesas_sdhi.h
View File

@ -31,6 +31,8 @@ struct renesas_sdhi_of_data {
int scc_offset;
struct renesas_sdhi_scc *taps;
int taps_num;
unsigned int max_blk_count;
unsigned short max_segs;
};
int renesas_sdhi_probe(struct platform_device *pdev,

2
drivers/mmc/host/renesas_sdhi_core.c
View File

@ -526,6 +526,8 @@ int renesas_sdhi_probe(struct platform_device *pdev,
mmc_data->capabilities |= of_data->capabilities;
mmc_data->capabilities2 |= of_data->capabilities2;
mmc_data->dma_rx_offset = of_data->dma_rx_offset;
mmc_data->max_blk_count = of_data->max_blk_count;
mmc_data->max_segs = of_data->max_segs;
dma_priv->dma_buswidth = of_data->dma_buswidth;
host->bus_shift = of_data->bus_shift;
}

6
drivers/mmc/host/tmio_mmc_core.c
View File

@ -1251,10 +1251,10 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
mmc->caps |= MMC_CAP_4_BIT_DATA | pdata->capabilities;
mmc->caps2 |= pdata->capabilities2;
mmc->max_segs = 32;
mmc->max_segs = pdata->max_segs ? : 32;
mmc->max_blk_size = 512;
mmc->max_blk_count = (PAGE_SIZE / mmc->max_blk_size) *
mmc->max_segs;
mmc->max_blk_count = pdata->max_blk_count ? :
(PAGE_SIZE / mmc->max_blk_size) * mmc->max_segs;
mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
mmc->max_seg_size = mmc->max_req_size;

2
include/linux/mfd/tmio.h
View File

@ -128,6 +128,8 @@ struct tmio_mmc_data {
unsigned int cd_gpio;
int alignment_shift;
dma_addr_t dma_rx_offset;
unsigned int max_blk_count;
unsigned short max_segs;
void (*set_pwr)(struct platform_device *host, int state);
void (*set_clk_div)(struct platform_device *host, int state);
};