Received-SPF: Pass (protection.outlook.com: domain of amd.com designates
 165.204.84.17 as permitted sender) receiver=protection.outlook.com;
 client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C
From:   Brad Larson <blarson@amd.com>
To:     <linux-arm-kernel@lists.infradead.org>
CC:     <linux-kernel@vger.kernel.org>, <linux-mmc@vger.kernel.org>,
        <linux-spi@vger.kernel.org>, <adrian.hunter@intel.com>,
        <alcooperx@gmail.com>, <andy.shevchenko@gmail.com>,
        <arnd@arndb.de>, <blarson@amd.com>, <brendan.higgins@linux.dev>,
        <briannorris@chromium.org>, <brijeshkumar.singh@amd.com>,
        <catalin.marinas@arm.com>, <davidgow@google.com>,
        <gsomlo@gmail.com>, <gerg@linux-m68k.org>, <krzk@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <lee@kernel.org>,
        <lee.jones@linaro.org>, <broonie@kernel.org>,
        <yamada.masahiro@socionext.com>, <p.zabel@pengutronix.de>,
        <piotrs@cadence.com>, <p.yadav@ti.com>, <rdunlap@infradead.org>,
        <robh+dt@kernel.org>, <samuel@sholland.org>,
        <fancer.lancer@gmail.com>, <skhan@linuxfoundation.org>,
        <suravee.suthikulpanit@amd.com>, <thomas.lendacky@amd.com>,
        <tonyhuang.sunplus@gmail.com>, <ulf.hansson@linaro.org>,
        <vaishnav.a@ti.com>, <will@kernel.org>,
        <devicetree@vger.kernel.org>
Subject: [PATCH v10 12/15] mmc: sdhci-cadence: Support device specific init during probe
Date:   Sun, 5 Mar 2023 20:07:36 -0800
Message-ID: <20230306040739.51488-13-blarson@amd.com>
In-Reply-To: <20230306040739.51488-1-blarson@amd.com>
References: <20230306040739.51488-1-blarson@amd.com>
MIME-Version: 1.0
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Mar 2023 04:10:29.5420
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: a14fdc9f-24c1-4639-4387-08db1df8b8ff
X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com]
X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT041.eop-nam11.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4878
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Move struct sdhci_pltfm_data under new struct sdhci_cdns_drv_data.
Add an init() into sdhci_cdns_drv_data for platform specific device
initialization in the device probe which is not used for existing devices.

Signed-off-by: Brad Larson <blarson@amd.com>
---

v10 changes:
- New patch to provide for platform specific init() with no change
  to existing designs.

---
 drivers/mmc/host/sdhci-cadence.c | 32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)

diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index 708d4297f241..c528a25f48b8 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -77,6 +77,11 @@ struct sdhci_cdns_phy_cfg {
 	u8 addr;
 };
 
+struct sdhci_cdns_drv_data {
+	int (*init)(struct platform_device *pdev);
+	const struct sdhci_pltfm_data pltfm_data;
+};
+
 static const struct sdhci_cdns_phy_cfg sdhci_cdns_phy_cfgs[] = {
 	{ "cdns,phy-input-delay-sd-highspeed", SDHCI_CDNS_PHY_DLY_SD_HS, },
 	{ "cdns,phy-input-delay-legacy", SDHCI_CDNS_PHY_DLY_SD_DEFAULT, },
@@ -325,13 +330,17 @@ static const struct sdhci_ops sdhci_cdns_ops = {
 	.set_uhs_signaling = sdhci_cdns_set_uhs_signaling,
 };
 
-static const struct sdhci_pltfm_data sdhci_cdns_uniphier_pltfm_data = {
-	.ops = &sdhci_cdns_ops,
-	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+static const struct sdhci_cdns_drv_data sdhci_cdns_uniphier_drv_data = {
+	.pltfm_data = {
+		.ops = &sdhci_cdns_ops,
+		.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+	},
 };
 
-static const struct sdhci_pltfm_data sdhci_cdns_pltfm_data = {
-	.ops = &sdhci_cdns_ops,
+static const struct sdhci_cdns_drv_data sdhci_cdns_drv_data = {
+	.pltfm_data = {
+		.ops = &sdhci_cdns_ops,
+	},
 };
 
 static void sdhci_cdns_hs400_enhanced_strobe(struct mmc_host *mmc,
@@ -357,7 +366,7 @@ static void sdhci_cdns_hs400_enhanced_strobe(struct mmc_host *mmc,
 static int sdhci_cdns_probe(struct platform_device *pdev)
 {
 	struct sdhci_host *host;
-	const struct sdhci_pltfm_data *data;
+	const struct sdhci_cdns_drv_data *data;
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_cdns_priv *priv;
 	struct clk *clk;
@@ -376,10 +385,10 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
 
 	data = of_device_get_match_data(dev);
 	if (!data)
-		data = &sdhci_cdns_pltfm_data;
+		data = &sdhci_cdns_drv_data;
 
 	nr_phy_params = sdhci_cdns_phy_param_count(dev->of_node);
-	host = sdhci_pltfm_init(pdev, data,
+	host = sdhci_pltfm_init(pdev, &data->pltfm_data,
 				struct_size(priv, phy_params, nr_phy_params));
 	if (IS_ERR(host)) {
 		ret = PTR_ERR(host);
@@ -397,6 +406,11 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
 	host->ioaddr += SDHCI_CDNS_SRS_BASE;
 	host->mmc_host_ops.hs400_enhanced_strobe =
 				sdhci_cdns_hs400_enhanced_strobe;
+	if (data->init) {
+		ret = data->init(pdev);
+		if (ret)
+			goto free;
+	}
 	sdhci_enable_v4_mode(host);
 	__sdhci_read_caps(host, &version, NULL, NULL);
 
@@ -461,7 +475,7 @@ static const struct dev_pm_ops sdhci_cdns_pm_ops = {
 static const struct of_device_id sdhci_cdns_match[] = {
 	{
 		.compatible = "socionext,uniphier-sd4hc",
-		.data = &sdhci_cdns_uniphier_pltfm_data,
+		.data = &sdhci_cdns_uniphier_drv_data,
 	},
 	{ .compatible = "cdns,sd4hc" },
 	{ /* sentinel */ }
-- 
2.17.1