bus: ti-sysc: Improve reset to work with modules with no sysconfig (ab4d309d) · Commits · 戴 / test

At least display susbsystem (DSS) has modules with no sysconfig registers and rely on custom function for module reset handling. Let's make reset work with that too. Signed-off-by:

Tony Lindgren <tony@atomide.com>

drivers/bus/ti-sysc.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -1571,7 +1571,7 @@ static int sysc_reset(struct sysc *ddata)
		sysc_offset = ddata->offsets[SYSC_SYSCONFIG];
		syss_offset = ddata->offsets[SYSC_SYSSTATUS];

		if (ddata->legacy_mode \|\| sysc_offset < 0 \|\|
		if (ddata->legacy_mode \|\|
		ddata->cap->regbits->srst_shift < 0 \|\|
		ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT)
		return 0;
		@@ -1586,9 +1586,11 @@ static int sysc_reset(struct sysc *ddata)
		if (ddata->pre_reset_quirk)
		ddata->pre_reset_quirk(ddata);

		if (sysc_offset >= 0) {
		sysc_val = sysc_read_sysconfig(ddata);
		sysc_val \|= sysc_mask;
		sysc_write(ddata, sysc_offset, sysc_val);
		}

		if (ddata->cfg.srst_udelay)
		usleep_range(ddata->cfg.srst_udelay,

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