Commit cfeeea60 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

bus: ti-sysc: Implement GPMC debug quirk to drop platform data 



We need to enable no-reset-on-init quirk for GPMC if the config
option for CONFIG_OMAP_GPMC_DEBUG is set. Otherwise the GPMC
driver code is unable to show the bootloader configured timings.

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 2928135c

drivers/bus/ti-sysc.c

+10 −0
Original line number Diff line number Diff line
@@ -1383,6 +1383,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { 
		   SYSC_QUIRK_CLKDM_NOAUTO),

	SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff,

		   SYSC_QUIRK_CLKDM_NOAUTO),

	SYSC_QUIRK("gpmc", 0, 0, 0x10, 0x14, 0x00000060, 0xffffffff,

		   SYSC_QUIRK_GPMC_DEBUG),

	SYSC_QUIRK("hdmi", 0, 0, 0x10, -ENODEV, 0x50030200, 0xffffffff,

		   SYSC_QUIRK_OPT_CLKS_NEEDED),

	SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff,
@@ -1818,6 +1820,14 @@ static void sysc_init_module_quirks(struct sysc *ddata) 
		return;

	}



#ifdef CONFIG_OMAP_GPMC_DEBUG

	if (ddata->cfg.quirks & SYSC_QUIRK_GPMC_DEBUG) {

		ddata->cfg.quirks |= SYSC_QUIRK_NO_RESET_ON_INIT;



		return;

	}

#endif



	if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_I2C) {

		ddata->pre_reset_quirk = sysc_pre_reset_quirk_i2c;

		ddata->post_reset_quirk = sysc_post_reset_quirk_i2c;

include/linux/platform_data/ti-sysc.h

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ struct sysc_regbits { 
	s8 emufree_shift;

};



#define SYSC_QUIRK_GPMC_DEBUG		BIT(26)

#define SYSC_MODULE_QUIRK_ENA_RESETDONE	BIT(25)

#define SYSC_MODULE_QUIRK_PRUSS		BIT(24)

#define SYSC_MODULE_QUIRK_DSS_RESET	BIT(23)