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Fri, 4 Feb 2022 02:30:07 -0800 From: Krishna Yarlagadda To: , , , , CC: , , , , , , Krishna Yarlagadda Subject: [PATCH 4/6] spi: tegra210-quad: add acpi support Date: Fri, 4 Feb 2022 15:59:34 +0530 Message-ID: <1643970576-31503-5-git-send-email-kyarlagadda@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1643970576-31503-1-git-send-email-kyarlagadda@nvidia.com> References: <1643970576-31503-1-git-send-email-kyarlagadda@nvidia.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4cb23c87-6214-410b-5e64-08d9e7c95489 X-MS-TrafficTypeDiagnostic: DM6PR12MB4942:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2887; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:12.22.5.235;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(13230001)(4636009)(36840700001)(46966006)(40470700004)(81166007)(5660300002)(7696005)(83380400001)(107886003)(356005)(6666004)(336012)(426003)(26005)(36756003)(2616005)(186003)(47076005)(70206006)(70586007)(4326008)(82310400004)(40460700003)(54906003)(8936002)(8676002)(110136005)(2906002)(508600001)(86362001)(316002)(36860700001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Feb 2022 10:30:14.0961 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4cb23c87-6214-410b-5e64-08d9e7c95489 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.235];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT022.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4942 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Add ACPI ID for Tegra QUAD SPI. Switch to common device property calls. Skip clock calls that are not updated in ACPI boot. Signed-off-by: Krishna Yarlagadda --- drivers/spi/spi-tegra210-quad.c | 50 ++++++++++++++++++++++++++++++++--------- 1 file changed, 39 insertions(+), 11 deletions(-) diff --git a/drivers/spi/spi-tegra210-quad.c b/drivers/spi/spi-tegra210-quad.c index 2e5f20c..c83701b 100644 --- a/drivers/spi/spi-tegra210-quad.c +++ b/drivers/spi/spi-tegra210-quad.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #define QSPI_COMMAND1 0x000 #define QSPI_BIT_LENGTH(x) (((x) & 0x1f) << 0) @@ -771,7 +773,7 @@ static u32 tegra_qspi_setup_transfer_one(struct spi_device *spi, struct spi_tran u32 tx_tap = 0, rx_tap = 0; int req_mode; - if (speed != tqspi->cur_speed) { + if (!has_acpi_companion(tqspi->dev) && speed != tqspi->cur_speed) { clk_set_rate(tqspi->clk, speed); tqspi->cur_speed = speed; } @@ -879,16 +881,16 @@ static int tegra_qspi_start_transfer_one(struct spi_device *spi, static struct tegra_qspi_client_data *tegra_qspi_parse_cdata_dt(struct spi_device *spi) { struct tegra_qspi_client_data *cdata; - struct device_node *slave_np = spi->dev.of_node; cdata = devm_kzalloc(&spi->dev, sizeof(*cdata), GFP_KERNEL); if (!cdata) return NULL; - of_property_read_u32(slave_np, "nvidia,tx-clk-tap-delay", - &cdata->tx_clk_tap_delay); - of_property_read_u32(slave_np, "nvidia,rx-clk-tap-delay", - &cdata->rx_clk_tap_delay); + device_property_read_u32(&spi->dev, "nvidia,tx-clk-tap-delay", + &cdata->tx_clk_tap_delay); + device_property_read_u32(&spi->dev, "nvidia,rx-clk-tap-delay", + &cdata->rx_clk_tap_delay); + return cdata; } @@ -1226,6 +1228,24 @@ static const struct of_device_id tegra_qspi_of_match[] = { MODULE_DEVICE_TABLE(of, tegra_qspi_of_match); +#ifdef CONFIG_ACPI +static const struct acpi_device_id tegra_qspi_acpi_match[] = { + { + .id = "NVDA1213", + .driver_data = (kernel_ulong_t)&tegra210_qspi_soc_data, + }, { + .id = "NVDA1313", + .driver_data = (kernel_ulong_t)&tegra186_qspi_soc_data, + }, { + .id = "NVDA1413", + .driver_data = (kernel_ulong_t)&tegra234_qspi_soc_data, + }, + {} +}; + +MODULE_DEVICE_TABLE(acpi, tegra_qspi_acpi_match); +#endif + static int tegra_qspi_probe(struct platform_device *pdev) { struct spi_master *master; @@ -1266,11 +1286,14 @@ static int tegra_qspi_probe(struct platform_device *pdev) qspi_irq = platform_get_irq(pdev, 0); tqspi->irq = qspi_irq; - tqspi->clk = devm_clk_get(&pdev->dev, "qspi"); - if (IS_ERR(tqspi->clk)) { - ret = PTR_ERR(tqspi->clk); - dev_err(&pdev->dev, "failed to get clock: %d\n", ret); - return ret; + if (!has_acpi_companion(tqspi->dev)) { + tqspi->clk = devm_clk_get(&pdev->dev, "qspi"); + if (IS_ERR(tqspi->clk)) { + ret = PTR_ERR(tqspi->clk); + dev_err(&pdev->dev, "failed to get clock: %d\n", ret); + return ret; + } + } tqspi->max_buf_size = QSPI_FIFO_DEPTH << 2; @@ -1373,6 +1396,8 @@ static int __maybe_unused tegra_qspi_runtime_suspend(struct device *dev) struct spi_master *master = dev_get_drvdata(dev); struct tegra_qspi *tqspi = spi_master_get_devdata(master); + if (has_acpi_companion(tqspi->dev)) + return 0; /* flush all write which are in PPSB queue by reading back */ tegra_qspi_readl(tqspi, QSPI_COMMAND1); @@ -1387,6 +1412,8 @@ static int __maybe_unused tegra_qspi_runtime_resume(struct device *dev) struct tegra_qspi *tqspi = spi_master_get_devdata(master); int ret; + if (has_acpi_companion(tqspi->dev)) + return 0; ret = clk_prepare_enable(tqspi->clk); if (ret < 0) dev_err(tqspi->dev, "failed to enable clock: %d\n", ret); @@ -1404,6 +1431,7 @@ static struct platform_driver tegra_qspi_driver = { .name = "tegra-qspi", .pm = &tegra_qspi_pm_ops, .of_match_table = tegra_qspi_of_match, + .acpi_match_table = ACPI_PTR(tegra_qspi_acpi_match), }, .probe = tegra_qspi_probe, .remove = tegra_qspi_remove,