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bus: ti-sysc: Handle clockactivity for enable and disable 

Modules with clockactivity need it configured during enable.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
alistair/sunxi64-5.4-dsi
Tony Lindgren 2019-05-27 04:51:54 -07:00
parent eec26555ae
commit ae9ae12e9d
1 changed files with 7 additions and 0 deletions
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7
drivers/bus/ti-sysc.c
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@ -859,6 +859,7 @@ static void sysc_show_registers(struct sysc *ddata)
}
#define SYSC_IDLE_MASK (SYSC_NR_IDLEMODES - 1)
#define SYSC_CLOCACT_ICK 2
/* Caller needs to manage sysc_clkdm_deny_idle() and sysc_clkdm_allow_idle() */
static int sysc_enable_module(struct device *dev)
@ -874,6 +875,12 @@ static int sysc_enable_module(struct device *dev)
regbits = ddata->cap->regbits;
reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]);
/* Set CLOCKACTIVITY, we only use it for ick */
if (regbits->clkact_shift >= 0 &&
(ddata->cfg.quirks & SYSC_QUIRK_USE_CLOCKACT ||
ddata->cfg.sysc_val & BIT(regbits->clkact_shift)))
reg |= SYSC_CLOCACT_ICK << regbits->clkact_shift;
/* Set SIDLE mode */
idlemodes = ddata->cfg.sidlemodes;
if (!idlemodes || regbits->sidle_shift < 0)