From fbc8016327b4fb1a58b71d5aeed9424acedc490e Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 21 Jan 2021 15:26:38 -0500
Subject: drm/amdgpu/ras: switch fru eeprom handling to use generic helper (v2)
Git-commit: 25e5c09f2b157156f1c4070fe765d1a631d86a4c
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

Use the new helper rather than doing i2c transfers directly.

v2: fix typo

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 .../gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c    | 22 +++++--------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index 39b6c6bfab45..224da573ba1b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -27,9 +27,9 @@
 #include "smu_v11_0_i2c.h"
 #include "atom.h"
 #include "amdgpu_fru_eeprom.h"
+#include "amdgpu_eeprom.h"
 
 #define I2C_PRODUCT_INFO_ADDR		0xAC
-#define I2C_PRODUCT_INFO_ADDR_SIZE	0x2
 #define I2C_PRODUCT_INFO_OFFSET		0xC0
 
 static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
@@ -65,16 +65,9 @@ static int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
 			   unsigned char *buff)
 {
 	int ret, size;
-	struct i2c_msg msg = {
-			.addr   = I2C_PRODUCT_INFO_ADDR,
-			.flags  = I2C_M_RD,
-			.buf    = buff,
-	};
-	buff[0] = 0;
-	buff[1] = addrptr;
-	msg.len = I2C_PRODUCT_INFO_ADDR_SIZE + 1;
-	ret = i2c_transfer(&adev->pm.smu_i2c, &msg, 1);
 
+	ret = amdgpu_eeprom_xfer(&adev->pm.smu_i2c, I2C_PRODUCT_INFO_ADDR,
+				 addrptr, buff, 1, true);
 	if (ret < 1) {
 		DRM_WARN("FRU: Failed to get size field");
 		return ret;
@@ -83,13 +76,10 @@ static int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
 	/* The size returned by the i2c requires subtraction of 0xC0 since the
 	 * size apparently always reports as 0xC0+actual size.
 	 */
-	size = buff[2] - I2C_PRODUCT_INFO_OFFSET;
-	/* Add 1 since address field was 1 byte */
-	buff[1] = addrptr + 1;
-
-	msg.len = I2C_PRODUCT_INFO_ADDR_SIZE + size;
-	ret = i2c_transfer(&adev->pm.smu_i2c, &msg, 1);
+	size = buff[0] - I2C_PRODUCT_INFO_OFFSET;
 
+	ret = amdgpu_eeprom_xfer(&adev->pm.smu_i2c, I2C_PRODUCT_INFO_ADDR,
+				 addrptr + 1, buff, size, true);
 	if (ret < 1) {
 		DRM_WARN("FRU: Failed to get data field");
 		return ret;
-- 
2.38.1