6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ard Biesheuvel <ardb@xxxxxxxxxx>
commit f2990f8630531a99cad4dc5c44cb2a11ded42492 upstream.
ACPI boot does not provide clocks and regulators, but instead, provides
the PCLK rate directly, and enables the clock in firmware. So deal
gracefully with this.
Fixes: 55750148e559 ("i2c: synquacer: Fix an error handling path in synquacer_i2c_probe()")
Cc: stable@xxxxxxxxxxxxxxx # v6.10+
Cc: Andi Shyti <andi.shyti@xxxxxxxxxx>
Cc: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-synquacer.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/i2c/busses/i2c-synquacer.c
+++ b/drivers/i2c/busses/i2c-synquacer.c
@@ -550,12 +550,13 @@ static int synquacer_i2c_probe(struct pl
device_property_read_u32(&pdev->dev, "socionext,pclk-rate",
&i2c->pclkrate);
- pclk = devm_clk_get_enabled(&pdev->dev, "pclk");
+ pclk = devm_clk_get_optional_enabled(&pdev->dev, "pclk");
if (IS_ERR(pclk))
return dev_err_probe(&pdev->dev, PTR_ERR(pclk),
"failed to get and enable clock\n");
- i2c->pclkrate = clk_get_rate(pclk);
+ if (pclk)
+ i2c->pclkrate = clk_get_rate(pclk);
if (i2c->pclkrate < SYNQUACER_I2C_MIN_CLK_RATE ||
i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE)
