linux-kernel - [PATCH v1 1/1] ACPI: LPSS: Fix the fractional clock divider flags

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Date:   Mon, 11 Dec 2023 13:14:29 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Raag Jadav <raag.jadav@...el.com>, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Alex Vinarskis <alex.vinarskis@...il.com>
Subject: [PATCH v1 1/1] ACPI: LPSS: Fix the fractional clock divider flags

The conversion to CLK_FRAC_DIVIDER_POWER_OF_TWO_PS uses wrong flags
in the parameters and hence miscalculates the values in the clock
divider. Fix this by applying the flag to the proper parameter.

Fixes: 82f53f9ee577 ("clk: fractional-divider: Introduce POWER_OF_TWO_PS flag")
Reported-by: Alex Vinarskis <alex.vinarskis@...il.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/acpi/acpi_lpss.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 79f4fc7d6871..6f454f61a432 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -453,8 +453,9 @@ static int register_device_clock(struct acpi_device *adev,
 		if (!clk_name)
 			return -ENOMEM;
 		clk = clk_register_fractional_divider(NULL, clk_name, parent,
+						      0, prv_base, 1, 15, 16, 15,
 						      CLK_FRAC_DIVIDER_POWER_OF_TWO_PS,
-						      prv_base, 1, 15, 16, 15, 0, NULL);
+						      NULL);
 		parent = clk_name;
 
 		clk_name = kasprintf(GFP_KERNEL, "%s-update", devname);
-- 
2.43.0.rc1.1.gbec44491f096