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Merge branch 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux into pm-cpufreq

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Pull cpufreq fixes for v3.12 from Viresh Kumar.

* 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux:
  cpufreq: imx6q: Fix clock enable balance
  cpufreq: tegra: fix the wrong clock name
This commit is contained in:
Rafael J. Wysocki 2013-08-27 02:37:54 +02:00
commit f7b2ed43b5
2 changed files with 2 additions and 19 deletions
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17
drivers/cpufreq/imx6q-cpufreq.c
View File

@ -117,28 +117,11 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
* - Reprogram pll1_sys_clk and reparent pll1_sw_clk back to it * - Reprogram pll1_sys_clk and reparent pll1_sw_clk back to it
* - Disable pll2_pfd2_396m_clk * - Disable pll2_pfd2_396m_clk
*/ */
clk_prepare_enable(pll2_pfd2_396m_clk);
clk_set_parent(step_clk, pll2_pfd2_396m_clk); clk_set_parent(step_clk, pll2_pfd2_396m_clk);
clk_set_parent(pll1_sw_clk, step_clk); clk_set_parent(pll1_sw_clk, step_clk);
if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) { if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) {
clk_set_rate(pll1_sys_clk, freqs.new * 1000); clk_set_rate(pll1_sys_clk, freqs.new * 1000);
/*
* If we are leaving 396 MHz set-point, we need to enable
* pll1_sys_clk and disable pll2_pfd2_396m_clk to keep
* their use count correct.
*/
if (freqs.old * 1000 <= clk_get_rate(pll2_pfd2_396m_clk)) {
clk_prepare_enable(pll1_sys_clk);
clk_disable_unprepare(pll2_pfd2_396m_clk);
}
clk_set_parent(pll1_sw_clk, pll1_sys_clk); clk_set_parent(pll1_sw_clk, pll1_sys_clk);
clk_disable_unprepare(pll2_pfd2_396m_clk);
} else {
/*
* Disable pll1_sys_clk if pll2_pfd2_396m_clk is sufficient
* to provide the frequency.
*/
clk_disable_unprepare(pll1_sys_clk);
} }
/* Ensure the arm clock divider is what we expect */ /* Ensure the arm clock divider is what we expect */

4
drivers/cpufreq/tegra-cpufreq.c
View File

@ -255,7 +255,7 @@ static struct cpufreq_driver tegra_cpufreq_driver = {
static int __init tegra_cpufreq_init(void) static int __init tegra_cpufreq_init(void)
{ {
cpu_clk = clk_get_sys(NULL, "cpu"); cpu_clk = clk_get_sys(NULL, "cclk");
if (IS_ERR(cpu_clk)) if (IS_ERR(cpu_clk))
return PTR_ERR(cpu_clk); return PTR_ERR(cpu_clk);
@ -263,7 +263,7 @@ static int __init tegra_cpufreq_init(void)
if (IS_ERR(pll_x_clk)) if (IS_ERR(pll_x_clk))
return PTR_ERR(pll_x_clk); return PTR_ERR(pll_x_clk);
pll_p_clk = clk_get_sys(NULL, "pll_p_cclk"); pll_p_clk = clk_get_sys(NULL, "pll_p");
if (IS_ERR(pll_p_clk)) if (IS_ERR(pll_p_clk))
return PTR_ERR(pll_p_clk); return PTR_ERR(pll_p_clk);