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This series a couple bug fixes and a couple fixes that make this
driver support recently added OMAP-based SoCs. The 'get_cpu_device' patch is needed due to a change in the OMAP OMAP PM core code which enforces use of get_cpu_device() instead of a deprecated OMAP-specific API. The usage of plat/*.h headers breaks single zImage, so platforms are cleaning up and/or removing plat/*.h so the driver needs to be fixed accordingly. This series is based on the merge of Rafael's pm-for-3.7-rc1 tag into Linus' master branch: commit16642a2e7b
. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQc028AAoJEFk3GJrT+8ZlTdUP/jnmHLW3wkYGPIecdp3OJSQq nWPSUHwmR38PpNHpTTJX/LG1gDOAea0TqyhkGFgwyp/IltfFg4a0GxAED/lmhhrd s89OmnMAmvr1AweIc4Arvkbx/YDw6TVKlrjez2TtpFXBQoRYE5MnIdgh0Cw8AEqD TNw7HNvLeGv+CAtc6SS9ful0uxMBbiS+50aQzhIvsp9HsGpT/JOqzgTjSK+FGGnS 92dwNSv5vKQoSLkPnFtJPQmSttn6KNopiUSIXwrZ4bXnY6jecm2Qf7SolCHcrfUR liwF34GBTiZ1NFisYrlAqRsrfuqasF4sa+6wnDLh1C/dMvC2cmHk5+H2Ib0hy/HV dvd8YunaKrlF5YS/5IpjDi1bfWtGJaEvlQ9g+3ayBFyHSPmyefJQKXM6viN/aNqo 2LnasseHrdLefWAN0zbGWUACkw5ZIrE8xwISp268nKSs7Z3jAE/Ptcxo+nBNaNpe PT+npYnkyCYFICY5ygcLvQDgECpTjgZmyuKYWf95U4Fa/1qTNbjwkmEXSOabByNm Vjtf98I8Tfqkz+Xt+Ui3HU9aM6mz/ctj1umV4STfDj5wzFKfAgPX54o2kEbFCnKS H+rBNyfH0S+1qMlhKInocnix1M36a2UHg4qitu2tWEkzoSb9TnEgllZ2BFLVKSeY KV3VwoCytaKQIhDheSq7 =kteZ -----END PGP SIGNATURE----- Merge tag 'for_3.7-fixes-cpufreq' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-v3.7-rc1/fixes-cpufreq This series a couple bug fixes and a couple fixes that make this driver support recently added OMAP-based SoCs. The 'get_cpu_device' patch is needed due to a change in the OMAP OMAP PM core code which enforces use of get_cpu_device() instead of a deprecated OMAP-specific API. The usage of plat/*.h headers breaks single zImage, so platforms are cleaning up and/or removing plat/*.h so the driver needs to be fixed accordingly. This series is based on the merge of Rafael's pm-for-3.7-rc1 tag into Linus' master branch: commit16642a2e7b
.
This commit is contained in:
commit
37fedb4c42
@ -18,6 +18,7 @@
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*/
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#include <linux/module.h>
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#include <linux/opp.h>
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#include <linux/cpu.h>
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#include <plat/omap_device.h>
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@ -62,13 +63,23 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
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__func__, i);
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return -EINVAL;
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}
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oh = omap_hwmod_lookup(opp_def->hwmod_name);
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if (!oh || !oh->od) {
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pr_debug("%s: no hwmod or odev for %s, [%d] cannot add OPPs.\n",
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__func__, opp_def->hwmod_name, i);
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continue;
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if (!strncmp(opp_def->hwmod_name, "mpu", 3)) {
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/*
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* All current OMAPs share voltage rail and
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* clock source, so CPU0 is used to represent
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* the MPU-SS.
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*/
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dev = get_cpu_device(0);
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} else {
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oh = omap_hwmod_lookup(opp_def->hwmod_name);
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if (!oh || !oh->od) {
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pr_debug("%s: no hwmod or odev for %s, [%d] cannot add OPPs.\n",
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__func__, opp_def->hwmod_name, i);
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continue;
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}
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dev = &oh->od->pdev->dev;
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}
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dev = &oh->od->pdev->dev;
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r = opp_add(dev, opp_def->freq, opp_def->u_volt);
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if (r) {
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@ -16,6 +16,7 @@
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#include <linux/opp.h>
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#include <linux/export.h>
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#include <linux/suspend.h>
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#include <linux/cpu.h>
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#include <asm/system_misc.h>
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@ -169,7 +170,15 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
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goto exit;
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}
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dev = omap_device_get_by_hwmod_name(oh_name);
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if (!strncmp(oh_name, "mpu", 3))
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/*
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* All current OMAPs share voltage rail and clock
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* source, so CPU0 is used to represent the MPU-SS.
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*/
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dev = get_cpu_device(0);
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else
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dev = omap_device_get_by_hwmod_name(oh_name);
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if (IS_ERR(dev)) {
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pr_err("%s: Unable to get dev pointer for hwmod %s\n",
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__func__, oh_name);
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@ -158,7 +158,7 @@ static struct regulator_init_data omap3_vpll2_idata = {
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};
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static struct regulator_consumer_supply omap3_vdd1_supply[] = {
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REGULATOR_SUPPLY("vcc", "mpu.0"),
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REGULATOR_SUPPLY("vcc", "cpu0"),
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};
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static struct regulator_consumer_supply omap3_vdd2_supply[] = {
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@ -30,20 +30,12 @@
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#include <asm/smp_plat.h>
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#include <asm/cpu.h>
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#include <plat/clock.h>
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#include <plat/omap-pm.h>
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#include <plat/common.h>
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#include <plat/omap_device.h>
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#include <mach/hardware.h>
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/* OPP tolerance in percentage */
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#define OPP_TOLERANCE 4
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static struct cpufreq_frequency_table *freq_table;
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static atomic_t freq_table_users = ATOMIC_INIT(0);
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static struct clk *mpu_clk;
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static char *mpu_clk_name;
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static struct device *mpu_dev;
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static struct regulator *mpu_reg;
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@ -108,6 +100,14 @@ static int omap_target(struct cpufreq_policy *policy,
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}
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freq = freqs.new * 1000;
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ret = clk_round_rate(mpu_clk, freq);
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if (IS_ERR_VALUE(ret)) {
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dev_warn(mpu_dev,
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"CPUfreq: Cannot find matching frequency for %lu\n",
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freq);
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return ret;
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}
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freq = ret;
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if (mpu_reg) {
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opp = opp_find_freq_ceil(mpu_dev, &freq);
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@ -172,7 +172,7 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
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{
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int result = 0;
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mpu_clk = clk_get(NULL, mpu_clk_name);
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mpu_clk = clk_get(NULL, "cpufreq_ck");
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if (IS_ERR(mpu_clk))
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return PTR_ERR(mpu_clk);
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@ -253,22 +253,10 @@ static struct cpufreq_driver omap_driver = {
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static int __init omap_cpufreq_init(void)
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{
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if (cpu_is_omap24xx())
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mpu_clk_name = "virt_prcm_set";
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else if (cpu_is_omap34xx())
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mpu_clk_name = "dpll1_ck";
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else if (cpu_is_omap44xx())
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mpu_clk_name = "dpll_mpu_ck";
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if (!mpu_clk_name) {
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pr_err("%s: unsupported Silicon?\n", __func__);
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return -EINVAL;
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}
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mpu_dev = omap_device_get_by_hwmod_name("mpu");
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if (IS_ERR(mpu_dev)) {
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mpu_dev = get_cpu_device(0);
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if (!mpu_dev) {
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pr_warning("%s: unable to get the mpu device\n", __func__);
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return PTR_ERR(mpu_dev);
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return -EINVAL;
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}
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mpu_reg = regulator_get(mpu_dev, "vcc");
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