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authorAlex Frid <afrid@nvidia.com>2011-03-09 18:58:01 -0800
committerDan Willemsen <dwillemsen@nvidia.com>2011-11-30 21:42:24 -0800
commit3b78c03df40d902bc6abb9812c04fca81054fdab (patch)
treee5bbab7f0f5577e8ec41b3a5b248be9f0ffb221a /arch/arm/mach-tegra/cpu-tegra.c
parentdc930f7e452c147783ed974a198be129e94445f7 (diff)
ARM: tegra: dvfs: Add Tegra3 EMC and CPU rates dependency
Original-Change-Id: I28155e59fd6cb36ccd63d8d17ed01b70b9209f97 Original-Change-Id: Ic4ebe6007ab9ee308039ad86c0930f85d116fdd5 Reviewed-on: http://git-master/r/22531 Reviewed-by: Aleksandr Frid <afrid@nvidia.com> Tested-by: Aleksandr Frid <afrid@nvidia.com> Reviewed-by: Narendra Damahe <ndamahe@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com> Original-Change-Id: I4e5e939921d6d82aa8687545399a867901655069 Rebase-Id: R71c8b69183d12414112d88d60fe54a7b85a6d3de
Diffstat (limited to 'arch/arm/mach-tegra/cpu-tegra.c')
-rw-r--r--arch/arm/mach-tegra/cpu-tegra.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index ea6b7aaffa90..48386d0129e0 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -216,16 +216,7 @@ static int tegra_update_cpu_speed(unsigned long rate)
* Vote on memory bus frequency based on cpu frequency
* This sets the minimum frequency, display or avp may request higher
*/
- if (rate >= 816000)
- clk_set_rate(emc_clk, 600000000); /* cpu 816 MHz, emc max */
- else if (rate >= 608000)
- clk_set_rate(emc_clk, 300000000); /* cpu 608 MHz, emc 150Mhz */
- else if (rate >= 456000)
- clk_set_rate(emc_clk, 150000000); /* cpu 456 MHz, emc 75Mhz */
- else if (rate >= 312000)
- clk_set_rate(emc_clk, 100000000); /* cpu 312 MHz, emc 50Mhz */
- else
- clk_set_rate(emc_clk, 50000000); /* emc 25Mhz */
+ clk_set_rate(emc_clk, tegra_emc_to_cpu_ratio(rate));
for_each_online_cpu(freqs.cpu)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);