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

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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: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2020-11-16 12:57:13 +02:00
parent 2928135c93
commit cfeeea60af
2 changed files with 11 additions and 0 deletions
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10
drivers/bus/ti-sysc.c
View File

@ -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;

1
include/linux/platform_data/ti-sysc.h
View File

@ -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)