shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 11:50:43 +09:00
Code Issues Packages Projects Releases Wiki Activity

RK3188 USB: disable usb bypass uart function in standby, reduce power consumption

Browse Source
This commit is contained in:
wlf
2013-03-05 15:11:59 +08:00
parent 3d292ae5c7
commit 4ebbf925a3
1 changed files with 15 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm/mach-rk30/pm.c
View File

@@ -457,6 +457,7 @@ static void __sramfunc rk30_sram_suspend(void)
u32 cru_clksel0_con, cru_clksel10_con;
u32 clkgt_regs[CRU_CLKGATES_CON_CNT];
u32 cru_mode_con;
u32 grf_uoc0_con0_status;
int i;
sram_printch('5');
@@ -469,6 +470,13 @@ static void __sramfunc rk30_sram_suspend(void)
board_act8846_set_suspend_vol();
#endif
#if defined(CONFIG_ARCH_RK3188) && (CONFIG_RK_DEBUG_UART == 2)
#ifdef CONFIG_RK_USB_UART
grf_uoc0_con0_status = grf_readl(GRF_UOC0_CON0);
grf_writel(0x03000000, GRF_UOC0_CON0);
#endif
#endif
for (i = 0; i < CRU_CLKGATES_CON_CNT; i++) {
clkgt_regs[i] = cru_readl(CRU_CLKGATES_CON(i));
}
@@ -555,6 +563,13 @@ static void __sramfunc rk30_sram_suspend(void)
#ifdef CONFIG_ACT8846_SUPPORT_RESET
board_act8846_set_resume_vol();
#endif
#if defined(CONFIG_ARCH_RK3188) && (CONFIG_RK_DEBUG_UART == 2)
#ifdef CONFIG_RK_USB_UART
grf_writel(0x03000000 | grf_uoc0_con0_status, GRF_UOC0_CON0);
#endif
#endif
sram_printch('7');
rk30_pwm_logic_resume_voltage();
rk30_suspend_voltage_resume(1100000);