Merge tag 'omap-for-v5.5/ti-sysc-late-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Few ti-sysc related fixes for v5.5 merge window

Just few minor changes that can be merged when suitable, but would
be good to have these in v5.5-rc1 to remove dependencies between branches
for more changes later on in v5.6:

- Add quirk handling for AESS (Audio Engine Sub System)

- We want to drop the useless gptimer option for omap4 as there are local
  timers

- A minor error path handling improvment for sysc_child_add_named_clock()
  that will make further patching a bit easier

* tag 'omap-for-v5.5/ti-sysc-late-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Adjust exception handling in sysc_child_add_named_clock()
  ARM: OMAP2+: Drop useless gptimer option for omap4
  bus: ti-sysc: Add module enable quirk for audio AESS

Link: https://lore.kernel.org/r/pull-1574273726-31367@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 16 insertions, 5 deletions

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 97b85493aa43..56887c6877a7 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1242,6 +1242,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 		   SYSC_QUIRK_SWSUP_SIDLE),
 
 	/* Quirks that need to be set based on detected module */
+	SYSC_QUIRK("aess", 0, 0, 0x10, -1, 0x40000000, 0xffffffff,
+		   SYSC_MODULE_QUIRK_AESS),
 	SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff,
 		   SYSC_MODULE_QUIRK_HDQ1W),
 	SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x0000000a, 0xffffffff,
@@ -1270,7 +1272,6 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 #ifdef DEBUG
 	SYSC_QUIRK("adc", 0, 0, 0x10, -1, 0x47300001, 0xffffffff, 0),
 	SYSC_QUIRK("atl", 0, 0, -1, -1, 0x0a070100, 0xffffffff, 0),
-	SYSC_QUIRK("aess", 0, 0, 0x10, -1, 0x40000000, 0xffffffff, 0),
 	SYSC_QUIRK("cm", 0, 0, -1, -1, 0x40000301, 0xffffffff, 0),
 	SYSC_QUIRK("control", 0, 0, 0x10, -1, 0x40000900, 0xffffffff, 0),
 	SYSC_QUIRK("cpgmac", 0, 0x1200, 0x1208, 0x1204, 0x4edb1902,
@@ -1402,6 +1403,14 @@ static void sysc_clk_enable_quirk_hdq1w(struct sysc *ddata)
 	sysc_write(ddata, offset, val);
 }
 
+/* AESS (Audio Engine SubSystem) needs autogating set after enable */
+static void sysc_module_enable_quirk_aess(struct sysc *ddata)
+{
+	int offset = 0x7c;	/* AESS_AUTO_GATING_ENABLE */
+
+	sysc_write(ddata, offset, 1);
+}
+
 /* I2C needs extra enable bit toggling for reset */
 static void sysc_clk_quirk_i2c(struct sysc *ddata, bool enable)
 {
@@ -1484,6 +1493,9 @@ static void sysc_init_module_quirks(struct sysc *ddata)
 		return;
 	}
 
+	if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_AESS)
+		ddata->module_enable_quirk = sysc_module_enable_quirk_aess;
+
 	if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_SGX)
 		ddata->module_enable_quirk = sysc_module_enable_quirk_sgx;
 
@@ -1766,9 +1778,8 @@ static int sysc_child_add_named_clock(struct sysc *ddata,
 
 	clk = clk_get(child, name);
 	if (!IS_ERR(clk)) {
-		clk_put(clk);
-
-		return -EEXIST;
+		error = -EEXIST;
+		goto put_clk;
 	}
 
 	clk = clk_get(ddata->dev, name);
@@ -1778,7 +1789,7 @@ static int sysc_child_add_named_clock(struct sysc *ddata,
 	l = clkdev_create(clk, name, dev_name(child));
 	if (!l)
 		error = -ENOMEM;
-
+put_clk:
 	clk_put(clk);
 
 	return error;