mediatek: backport upstream mediatek patches

[openwrt/staging/blogic.git] / target / linux / mediatek / patches-4.14 / 0178-phy-phy-mtk-tphy-make-shared-banks-optional-for-V1-T.patch

diff --git a/target/linux/mediatek/patches-4.14/0178-phy-phy-mtk-tphy-make-shared-banks-optional-for-V1-T.patch b/target/linux/mediatek/patches-4.14/0178-phy-phy-mtk-tphy-make-shared-banks-optional-for-V1-T.patch
new file mode 100644 (file)
index 0000000..78e913e
--- /dev/null
+++ b/target/linux/mediatek/patches-4.14/0178-phy-phy-mtk-tphy-make-shared-banks-optional-for-V1-T.patch
@@ -0,0 +1,35 @@
+From d7a38584713b00cf9ae97aed89d5e8fb7e3c1bea Mon Sep 17 00:00:00 2001
+From: Chunfeng Yun <chunfeng.yun@mediatek.com>
+Date: Thu, 7 Dec 2017 19:53:35 +0800
+Subject: [PATCH 178/224] phy: phy-mtk-tphy: make shared banks optional for V1
+ TPHY
+
+V1 TPHY for SATA doesn't have shared banks if it isn't shared
+with PCIe or USB, so make it optional.
+
+Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
+Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
+---
+ drivers/phy/mediatek/phy-mtk-tphy.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c
+index 54cc44b2d289..11cab1d84a02 100644
+--- a/drivers/phy/mediatek/phy-mtk-tphy.c
++++ b/drivers/phy/mediatek/phy-mtk-tphy.c
+@@ -1023,9 +1023,10 @@ static int mtk_tphy_probe(struct platform_device *pdev)
+       tphy->dev = dev;
+       platform_set_drvdata(pdev, tphy);
+ 
+-      if (tphy->pdata->version == MTK_PHY_V1) {
++      sif_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++      /* SATA phy of V1 needn't it if not shared with PCIe or USB */
++      if (sif_res && tphy->pdata->version == MTK_PHY_V1) {
+               /* get banks shared by multiple phys */
+-              sif_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+               tphy->sif_base = devm_ioremap_resource(dev, sif_res);
+               if (IS_ERR(tphy->sif_base)) {
+                       dev_err(dev, "failed to remap sif regs\n");
+-- 
+2.11.0
+