EHRPWM module requires explicit clock gating of TBCLK from control module. Hence add TBCLK clock node in clock tree for EHRPWM modules.
Signed-off-by: Philip, Avinash <avinashphi...@ti.com> --- Changes since v4: - Add dev_id field in clcok tree for TBCLK to remove support for optional HWMOD clock support for EHRPWM. arch/arm/mach-omap2/clock33xx_data.c | 37 ++++++++++++++++++++++++++++++++++ arch/arm/mach-omap2/control.h | 8 +++++++ 2 files changed, 45 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/clock33xx_data.c b/arch/arm/mach-omap2/clock33xx_data.c index 1a45d6b..d08cd9a 100644 --- a/arch/arm/mach-omap2/clock33xx_data.c +++ b/arch/arm/mach-omap2/clock33xx_data.c @@ -996,6 +996,40 @@ static struct clk wdt1_fck = { }; /* + * PWMSS Time based module clock node. This node is + * requred to enable clock gating for EHRPWM TBCLK. + */ +static struct clk ehrpwm0_tbclk = { + .name = "ehrpwm0_tbclk", + .clkdm_name = "l4ls_clkdm", + .enable_reg = AM33XX_CTRL_REGADDR(AM33XX_PWMSS_TBCLK_CLKCTRL), + .enable_bit = AM33XX_PWMSS0_TBCLKEN_SHIFT, + .ops = &clkops_omap2_dflt, + .parent = &l4ls_gclk, + .recalc = &followparent_recalc, +}; + +static struct clk ehrpwm1_tbclk = { + .name = "ehrpwm1_tbclk", + .clkdm_name = "l4ls_clkdm", + .enable_reg = AM33XX_CTRL_REGADDR(AM33XX_PWMSS_TBCLK_CLKCTRL), + .enable_bit = AM33XX_PWMSS1_TBCLKEN_SHIFT, + .ops = &clkops_omap2_dflt, + .parent = &l4ls_gclk, + .recalc = &followparent_recalc, +}; + +static struct clk ehrpwm2_tbclk = { + .name = "ehrpwm2_tbclk", + .clkdm_name = "l4ls_clkdm", + .enable_reg = AM33XX_CTRL_REGADDR(AM33XX_PWMSS_TBCLK_CLKCTRL), + .enable_bit = AM33XX_PWMSS2_TBCLKEN_SHIFT, + .ops = &clkops_omap2_dflt, + .parent = &l4ls_gclk, + .recalc = &followparent_recalc, +}; + +/* * clkdev */ static struct omap_clk am33xx_clks[] = { @@ -1075,6 +1109,9 @@ static struct omap_clk am33xx_clks[] = { CLK(NULL, "clkout2_ck", &clkout2_ck, CK_AM33XX), CLK(NULL, "timer_32k_ck", &clkdiv32k_ick, CK_AM33XX), CLK(NULL, "timer_sys_ck", &sys_clkin_ck, CK_AM33XX), + CLK("48300200.ehrpwm", "tbclk", &ehrpwm0_tbclk, CK_AM33XX), + CLK("48302200.ehrpwm", "tbclk", &ehrpwm1_tbclk, CK_AM33XX), + CLK("48304200.ehrpwm", "tbclk", &ehrpwm2_tbclk, CK_AM33XX), }; int __init am33xx_clk_init(void) diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h index a89e825..c0e34e6 100644 --- a/arch/arm/mach-omap2/control.h +++ b/arch/arm/mach-omap2/control.h @@ -357,6 +357,14 @@ #define AM33XX_CONTROL_STATUS_SYSBOOT1_WIDTH 0x2 #define AM33XX_CONTROL_STATUS_SYSBOOT1_MASK (0x3 << 22) +/* AM33XX PWMSS Control register */ +#define AM33XX_PWMSS_TBCLK_CLKCTRL 0x664 + +/* AM33XX PWMSS Control bitfields */ +#define AM33XX_PWMSS0_TBCLKEN_SHIFT 0 +#define AM33XX_PWMSS1_TBCLKEN_SHIFT 1 +#define AM33XX_PWMSS2_TBCLKEN_SHIFT 2 + /* CONTROL OMAP STATUS register to identify OMAP3 features */ #define OMAP3_CONTROL_OMAP_STATUS 0x044c -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html