Thread (15 messages) 15 messages, 2 authors, 2024-02-01
STALE895d LANDED: 11 (11M)

[PATCH v2 1/6] clk: samsung: gs101: gpio_peric0_pclk needs to be kept on

From: André Draszik <andre.draszik@linaro.org>
Date: 2024-01-30 09:38:29
Also in: linux-clk, linux-devicetree, linux-samsung-soc, lkml
Subsystem: common clk framework, google tensor soc support, samsung soc clock drivers, the rest · Maintainers: Michael Turquette, Stephen Boyd, Peter Griffin, Krzysztof Kozlowski, Sylwester Nawrocki, Chanwoo Choi, Linus Torvalds

This pclk clock is required any time we access the pinctrl registers of
this block.

Since pinctrl-samsung doesn't support a clock at the moment, we just
keep the kernel from disabling it at boot, until we have an update for
pinctrl-samsung to handle this required clock, at which point we'll be
able to drop the flag again.

Fixes: 893f133a040b ("clk: samsung: gs101: add support for cmu_peric0")
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>

---
v2: collect Reviewed-by: tags
---
 drivers/clk/samsung/clk-gs101.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/samsung/clk-gs101.c b/drivers/clk/samsung/clk-gs101.c
index 4a0520e825b6..61bb0dcf84ee 100644
--- a/drivers/clk/samsung/clk-gs101.c
+++ b/drivers/clk/samsung/clk-gs101.c
@@ -2848,7 +2848,7 @@ static const struct samsung_gate_clock peric0_gate_clks[] __initconst = {
 	GATE(CLK_GOUT_PERIC0_GPIO_PERIC0_PCLK,
 	     "gout_peric0_gpio_peric0_pclk", "mout_peric0_bus_user",
 	     CLK_CON_GAT_GOUT_BLK_PERIC0_UID_GPIO_PERIC0_IPCLKPORT_PCLK,
-	     21, 0, 0),
+	     21, CLK_IGNORE_UNUSED, 0),
 	/* Disabling this clock makes the system hang. Mark the clock as critical. */
 	GATE(CLK_GOUT_PERIC0_LHM_AXI_P_PERIC0_I_CLK,
 	     "gout_peric0_lhm_axi_p_peric0_i_clk", "mout_peric0_bus_user",
-- 
2.43.0.429.g432eaa2c6b-goog


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