| Message ID | 1529645568-3786-1-git-send-email-Anson.Huang@nxp.com |
|---|---|
| State | New |
| Headers | show |
| Series | ARM: imx: enable bus auto clock gating function for i.mx6sll | expand |
On Fri, Jun 22, 2018 at 01:32:48PM +0800, Anson Huang wrote: > i.MX6SLL has HW bus auto clock gating function, enable > it by default to save VDD_SOC_IN power, about 5% ~ 20% > saved depends on different use cases. > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Applied, thanks.
On Sun, 01 Jul 2018, Shawn Guo wrote: > On Fri, Jun 22, 2018 at 01:32:48PM +0800, Anson Huang wrote: > > i.MX6SLL has HW bus auto clock gating function, enable > > it by default to save VDD_SOC_IN power, about 5% ~ 20% > > saved depends on different use cases. > > > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > > Applied, thanks. Since this touches MFD, please apply my Ack to the patch. Acked-by: Lee Jones <lee.jones@linaro.org>
On Tue, Jul 03, 2018 at 07:20:14AM +0100, Lee Jones wrote: > On Sun, 01 Jul 2018, Shawn Guo wrote: > > > On Fri, Jun 22, 2018 at 01:32:48PM +0800, Anson Huang wrote: > > > i.MX6SLL has HW bus auto clock gating function, enable > > > it by default to save VDD_SOC_IN power, about 5% ~ 20% > > > saved depends on different use cases. > > > > > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > > > > Applied, thanks. > > Since this touches MFD, please apply my Ack to the patch. > > Acked-by: Lee Jones <lee.jones@linaro.org> Done. Thanks for reminding, Lee. > > -- > Lee Jones [李琼斯] Nice Chinese name, BTW ;) Shawn
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c index 791e1fd..b08e407 100644 --- a/arch/arm/mach-imx/pm-imx6.c +++ b/arch/arm/mach-imx/pm-imx6.c @@ -648,10 +648,17 @@ void __init imx6dl_pm_init(void) void __init imx6sl_pm_init(void) { - if (cpu_is_imx6sl()) + struct regmap *gpr; + + if (cpu_is_imx6sl()) { imx6_pm_common_init(&imx6sl_pm_data); - else + } else { imx6_pm_common_init(&imx6sll_pm_data); + gpr = syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr"); + if (!IS_ERR(gpr)) + regmap_update_bits(gpr, IOMUXC_GPR5, + IMX6SLL_GPR5_AFCG_X_BYPASS_MASK, 0); + } } void __init imx6sx_pm_init(void) diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h index e06f5f7..6c1ad16 100644 --- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h +++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h @@ -457,4 +457,7 @@ #define MCLK_DIR(x) (x == 1 ? IMX6UL_GPR1_SAI1_MCLK_DIR : x == 2 ? \ IMX6UL_GPR1_SAI2_MCLK_DIR : IMX6UL_GPR1_SAI3_MCLK_DIR) +/* For imx6sll iomux gpr register field define */ +#define IMX6SLL_GPR5_AFCG_X_BYPASS_MASK (0x1f << 11) + #endif /* __LINUX_IMX6Q_IOMUXC_GPR_H */
i.MX6SLL has HW bus auto clock gating function, enable it by default to save VDD_SOC_IN power, about 5% ~ 20% saved depends on different use cases. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> --- arch/arm/mach-imx/pm-imx6.c | 11 +++++++++-- include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 3 +++ 2 files changed, 12 insertions(+), 2 deletions(-)