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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Stephen Boyd <sboyd@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH v2 05/22] clk: at91: generated: set audio_pll_allowed in at91_clk_register_generated()
Date: Tue, 16 Oct 2018 16:21:43 +0200	[thread overview]
Message-ID: <20181016142200.19741-6-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20181016142200.19741-1-alexandre.belloni@bootlin.com>

Set gck->audio_pll_allowed in at91_clk_register_generated. This makes it
easier to do it from code that is not parsing device tree.

Also, this fixes an issue where the resulting clk_hw can be dereferenced
before being tested for error.

Fixes: 1a1a36d72e3d ("clk: at91: clk-generated: make gclk determine audio_pll rate")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/clk/at91/clk-generated.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index e709a12269c0..6dfee6e588c4 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -280,7 +280,7 @@ static void clk_generated_startup(struct clk_generated *gck)
 static struct clk_hw * __init
 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
 			    const char *name, const char **parent_names,
-			    u8 num_parents, u8 id,
+			    u8 num_parents, u8 id, bool pll_audio,
 			    const struct clk_range *range)
 {
 	struct clk_generated *gck;
@@ -304,6 +304,7 @@ at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
 	gck->regmap = regmap;
 	gck->lock = lock;
 	gck->range = *range;
+	gck->audio_pll_allowed = pll_audio;
 
 	clk_generated_startup(gck);
 	hw = &gck->hw;
@@ -329,7 +330,6 @@ static void __init of_sama5d2_clk_generated_setup(struct device_node *np)
 	struct device_node *gcknp;
 	struct clk_range range = CLK_RANGE(0, 0);
 	struct regmap *regmap;
-	struct clk_generated *gck;
 
 	num_parents = of_clk_get_parent_count(np);
 	if (num_parents == 0 || num_parents > GENERATED_SOURCE_MAX)
@@ -346,6 +346,8 @@ static void __init of_sama5d2_clk_generated_setup(struct device_node *np)
 		return;
 
 	for_each_child_of_node(np, gcknp) {
+		bool pll_audio = false;
+
 		if (of_property_read_u32(gcknp, "reg", &id))
 			continue;
 
@@ -358,23 +360,14 @@ static void __init of_sama5d2_clk_generated_setup(struct device_node *np)
 		of_at91_get_clk_range(gcknp, "atmel,clk-output-range",
 				      &range);
 
+		if (of_device_is_compatible(np, "atmel,sama5d2-clk-generated") &&
+		    (id == GCK_ID_I2S0 || id == GCK_ID_I2S1 ||
+		     id == GCK_ID_CLASSD))
+			pll_audio = true;
+
 		hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, name,
 						  parent_names, num_parents,
-						  id, &range);
-
-		gck = to_clk_generated(hw);
-
-		if (of_device_is_compatible(np,
-					    "atmel,sama5d2-clk-generated")) {
-			if (gck->id == GCK_ID_I2S0 || gck->id == GCK_ID_I2S1 ||
-			    gck->id == GCK_ID_CLASSD)
-				gck->audio_pll_allowed = true;
-			else
-				gck->audio_pll_allowed = false;
-		} else {
-			gck->audio_pll_allowed = false;
-		}
-
+						  id, pll_audio, &range);
 		if (IS_ERR(hw))
 			continue;
 
-- 
2.19.1


  parent reply	other threads:[~2018-10-16 14:24 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-16 14:21 [PATCH v2 00/22] clk: at91: Rework DT bindings Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 01/22] clk: at91: audio-pll: fix audio pmc type Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 02/22] clk: at91: generated: SSCs don't have a gclk Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 03/22] clk: at91: h32mx: separate registration from DT parsing Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 04/22] clk: at91: audio-pll: " Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` Alexandre Belloni [this message]
2018-10-17 17:49   ` [PATCH v2 05/22] clk: at91: generated: set audio_pll_allowed in at91_clk_register_generated() Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 06/22] clk: at91: allow clock registration from C code Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 07/22] clk: at91: add pmc_data struct and helpers Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 08/22] dt-bindings: clk: at91: Document new PMC binding Alexandre Belloni
2018-10-17 17:49   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 09/22] clk: at91: add new DT lookup function Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 10/22] clk: at91: add sama5d4 pmc driver Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 11/22] clk: at91: add sama5d2 PMC driver Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 12/22] clk: at91: add at91sam9260 " Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 13/22] clk: at91: add at91sam9x5 PMCs driver Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 14/22] clk: at91: add at91sam9rl PMC driver Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 15/22] clk: at91: move DT compatibility code to its own file Alexandre Belloni
2018-10-17 17:50   ` Stephen Boyd
2018-10-16 14:21 ` [PATCH v2 16/22] ARM: dts: at91: sama5d4: switch to new clock bindings Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 17/22] ARM: dts: at91: sama5d2: switch to new binding Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 18/22] ARM: dts: at91: at91sam9260: switch to new clock bindings Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 19/22] ARM: dts: at91: at91sam9261: " Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 20/22] ARM: dts: at91: at91sam9263: " Alexandre Belloni
2018-10-16 14:21 ` [PATCH v2 21/22] ARM: dts: at91: at91sam9x5: " Alexandre Belloni
2018-10-16 14:22 ` [PATCH v2 22/22] ARM: dts: at91: at91sam9rl: " Alexandre Belloni
2018-10-17 16:50 ` [PATCH v2 00/22] clk: at91: Rework DT bindings Stephen Boyd
2018-10-17 17:27   ` Alexandre Belloni

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