On 08/20/2015 03:42 AM, Thierry Reding wrote:
From: Thierry Reding treding@nvidia.com
On currently supported SoCs, clk_m always runs at the same frequency as the oscillator input. However newer SoC generations such as Tegra210 no longer have that restriction. Prepare for that by separating clk_m from the oscillator clock and allow SoC code to override the clk_m rate.
diff --git a/arch/arm/include/asm/arch-tegra114/clock-tables.h b/arch/arm/include/asm/arch-tegra114/clock-tables.h index d8fa0e1d2cee..3f910f5ae8b9 100644 --- a/arch/arm/include/asm/arch-tegra114/clock-tables.h +++ b/arch/arm/include/asm/arch-tegra114/clock-tables.h @@ -38,6 +38,7 @@ enum clock_id { /* These are the base clocks (inputs to the Tegra SOC) */ CLOCK_ID_32KHZ, CLOCK_ID_OSC,
CLOCK_ID_CLK_M,
CLOCK_ID_COUNT, /* number of PLLs */ CLOCK_ID_DISPLAY2, /* placeholder */
clock.h contains the following:
/* Number of PLL-based clocks (i.e. not OSC or 32KHz) */ #define CLOCK_ID_PLL_COUNT (CLOCK_ID_COUNT - 2)
... which would need to be updated. Related, see internal bug number 1676978 to see if any of the other gotchas there affect this patch.