i2c: designware: Remove dead code in AMD ISP case

The I²C bus shared with P-Unit is Intel only thing as far as I know.
The AMD ISP driver has no relationship with P-Unit. Remove dead code
that seems copied without much thinking.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260129103439.187478-1-andriy.shevchenko@linux.intel.com

Author: andy-shev

drivers/i2c/busses/i2c-designware-amdisp.c

@@ -18,9 +18,6 @@
 static void amd_isp_dw_i2c_plat_pm_cleanup(struct dw_i2c_dev *i2c_dev)
 {
 	pm_runtime_disable(i2c_dev->dev);
-
-	if (i2c_dev->shared_with_punit)
-		pm_runtime_put_noidle(i2c_dev->dev);
 }
 
 static inline u32 amd_isp_dw_i2c_get_clk_rate(struct dw_i2c_dev *i2c_dev)
@@ -79,9 +76,6 @@ static int amd_isp_dw_i2c_plat_probe(struct platform_device *pdev)
 
 	device_enable_async_suspend(&pdev->dev);
 
-	if (isp_i2c_dev->shared_with_punit)
-		pm_runtime_get_noresume(&pdev->dev);
-
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
 
@@ -130,9 +124,6 @@ static int amd_isp_dw_i2c_plat_runtime_suspend(struct device *dev)
 {
 	struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
-	if (i_dev->shared_with_punit)
-		return 0;
-
 	i2c_dw_disable(i_dev);
 	i2c_dw_prepare_clk(i_dev, false);
 
@@ -161,9 +152,7 @@ static int amd_isp_dw_i2c_plat_runtime_resume(struct device *dev)
 	if (!i_dev)
 		return -ENODEV;
 
-	if (!i_dev->shared_with_punit)
-		i2c_dw_prepare_clk(i_dev, true);
-
+	i2c_dw_prepare_clk(i_dev, true);
 	i2c_dw_init(i_dev);
 
 	return 0;