linux-kernel - [PATCH 5.15 091/171] thermal: int340x: Fix VCoRefLow MMIO bit offset for TGL

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Date:   Mon, 13 Dec 2021 10:30:06 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Sumeet Pawnikar <sumeet.r.pawnikar@...el.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH 5.15 091/171] thermal: int340x: Fix VCoRefLow MMIO bit offset for TGL

From: Sumeet Pawnikar <sumeet.r.pawnikar@...el.com>

commit f872f73601b92c86f3da8bdf3e19abd0f1780eb9 upstream.

The VCoRefLow CPU FIVR register definition for Tiger Lake is incorrect.

Current implementation reads it from MMIO offset 0x5A18 and bit
offset [12:14], but the actual correct register definition is from
bit offset [11:13].

Update to fix the bit offset.

Fixes: 473be51142ad ("thermal: int340x: processor_thermal: Add RFIM driver")
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@...el.com>
Cc: 5.14+ <stable@...r.kernel.org> # 5.14+
[ rjw: New subject, changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c
@@ -29,7 +29,7 @@ static const char * const fivr_strings[]
 };
 
 static const struct mmio_reg tgl_fivr_mmio_regs[] = {
-	{ 0, 0x5A18, 3, 0x7, 12}, /* vco_ref_code_lo */
+	{ 0, 0x5A18, 3, 0x7, 11}, /* vco_ref_code_lo */
 	{ 0, 0x5A18, 8, 0xFF, 16}, /* vco_ref_code_hi */
 	{ 0, 0x5A08, 8, 0xFF, 0}, /* spread_spectrum_pct */
 	{ 0, 0x5A08, 1, 0x1, 8}, /* spread_spectrum_clk_enable */