From patchwork Wed Feb 7 11:15:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tudor Ambarus X-Patchwork-Id: 13548337 Received: from mail-lf1-f43.google.com (mail-lf1-f43.google.com [209.85.167.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED19E1A587 for ; Wed, 7 Feb 2024 11:15:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707304526; cv=none; b=HBYda/qWGO+Wu2KoJk1E9a2tz21DpRzXVVq992WDimFaq1T8lwzk1Gyro3MNoBhqh+YJjAvcOXE560mpmwey//c835AJh7oGvrl2Jyf1UqMYU29qulzd4E52dGUgdfPxdT4QgAenCVBgiqudzbSDF1YU0IT7GNdHO99A2cdhAMw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707304526; c=relaxed/simple; bh=OIO0Jdw0rKx9pnTeOXamc0BX8ibgMh/GcNFiiLOTq8M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZqnT8/fKjZZRREkKTtr/OXlwHK6uoY+l231m1dFUL9SHrr3QK/6HJ04Xl7NIl9v9DsN1ykj8T/MtGAxlkCHM31suUjQFO4IGg4XWjLsxU0xim0DHQNf6F9StAveJmwbS9/c1nTjswVkHtuQfYdjxsALnzlhuY24nVEl2LAXVpDM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=z7PjOecY; arc=none smtp.client-ip=209.85.167.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="z7PjOecY" Received: by mail-lf1-f43.google.com with SMTP id 2adb3069b0e04-5116588189aso834786e87.1 for ; Wed, 07 Feb 2024 03:15:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1707304523; x=1707909323; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Dn0uxZFDo6NWePr2qdwdP08ijlsAxDoEPw964FSIz1A=; b=z7PjOecYXXm+kVZFx6anxNnMBzFt5PK7acSZ4Wb13Vso1G7nBAJZfb7efH6+pXUASC 3hdCYABBkHNvj7YpLGM9Whr7S7qplprKiMot4Z/Pv5oF3hKjjCC1J1Jc68amaE0iolTV AsAGV3D3Al0nu0Uh0Q6eXCYe7klY0dEXDN4q7YHX9PTrd1ZHkdLlBgXF8l9jLsCKD3Yc dqM04hj7BgWzgphc4iducJcwhlZICTptuF3Y1/a/GWZGTxBGm3wmt4ZHzQyKSTLnEQTO G4NoHpCCL5emR5TVwGuJJvAIcuJoj7xCZd5NGQwJveE9V09+zOvTsO6Mik5rYB78jjRT zI4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707304523; x=1707909323; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Dn0uxZFDo6NWePr2qdwdP08ijlsAxDoEPw964FSIz1A=; b=q+QWC0uLliCOyXeaTtGNIPPzZV+yh9JRIChpgP2welPOL/cwsN6OcnZfNVc+IYIN9t wY5RaeOQjeICy7GBAU9pSy5oCLzM1gUPa/pcbzRScRZ16wPWZntMf6URvCnsbnoMBwge 9AF/c2YDlX9mOX1iJEYrbRAGzWcvtg/vKkGnJifAfm8oNGEHDpwWdrVgL1shjuTRakJC Rl7WgWakrm1v25PODM3QSvdXEe5xlgQ20idS8wdgyKDdzpURaF7KlZkL9V4dAe7s8/ma DSfHvzxaXI0RTcLcBPoBaM8OtPCPN42CQgyli41fXNtTtt+dN4ODVc3ktsK1273gQcbN uRxQ== X-Gm-Message-State: AOJu0Yxl4Cgv69ZpOzdugtl+A8yCgtj0JuVZfvz0F6J9EPZzLtY9wMba wGwhhfpUkUphCBYj5D8zIfwW2II+8yGiodVggrpSTZcOMpQW7UQdOYWMevqyfCM= X-Google-Smtp-Source: AGHT+IE5eIKLuUmb8h+vJQhTopUxE+vxpnmBvmCs+6cqfMZAcpiMEAKVIc99ZTC/OMFtO9lArP2XLw== X-Received: by 2002:a19:f80a:0:b0:511:5e49:766 with SMTP id a10-20020a19f80a000000b005115e490766mr3055134lff.23.1707304523154; Wed, 07 Feb 2024 03:15:23 -0800 (PST) X-Forwarded-Encrypted: i=1; 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 Received: from ta2.c.googlers.com.com (105.168.195.35.bc.googleusercontent.com. [35.195.168.105]) by smtp.gmail.com with ESMTPSA id l14-20020a05600c4f0e00b0040ec8330c8asm4983260wmq.39.2024.02.07.03.15.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Feb 2024 03:15:21 -0800 (PST) From: Tudor Ambarus To: broonie@kernel.org, andi.shyti@kernel.org, semen.protsenko@linaro.org Cc: krzysztof.kozlowski@linaro.org, alim.akhtar@samsung.com, linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, andre.draszik@linaro.org, peter.griffin@linaro.org, kernel-team@android.com, willmcvicker@google.com, robh+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, Tudor Ambarus Subject: [PATCH v2 4/4] spi: s3c64xx: add support for google,gs101-spi Date: Wed, 7 Feb 2024 11:15:16 +0000 Message-ID: <20240207111516.2563218-5-tudor.ambarus@linaro.org> X-Mailer: git-send-email 2.43.0.687.g38aa6559b0-goog In-Reply-To: <20240207111516.2563218-1-tudor.ambarus@linaro.org> References: <20240207111516.2563218-1-tudor.ambarus@linaro.org> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support for GS101 SPI. GS101 integrates 16 SPI nodes, all with 64 bytes FIFOs. GS101 allows just 32 bit register accesses, otherwise a Serror Interrupt is raised. Do the write reg accesses in 32 bits. Reviewed-by: Sam Protsenko Signed-off-by: Tudor Ambarus --- drivers/spi/spi-s3c64xx.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 014fcc933c90..7ab3f3c2e9aa 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -17,7 +17,7 @@ #include -#define MAX_SPI_PORTS 12 +#define MAX_SPI_PORTS 16 #define S3C64XX_SPI_QUIRK_CS_AUTO (1 << 1) #define AUTOSUSPEND_TIMEOUT 2000 @@ -1534,6 +1534,19 @@ static const struct s3c64xx_spi_port_config fsd_spi_port_config = { .quirks = S3C64XX_SPI_QUIRK_CS_AUTO, }; +static const struct s3c64xx_spi_port_config gs101_spi_port_config = { + .fifo_lvl_mask = { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, + 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f}, + .rx_lvl_offset = 15, + .tx_st_done = 25, + .clk_div = 4, + .high_speed = true, + .clk_from_cmu = true, + .has_loopback = true, + .use_32bit_io = true, + .quirks = S3C64XX_SPI_QUIRK_CS_AUTO, +}; + static const struct platform_device_id s3c64xx_spi_driver_ids[] = { { .name = "s3c2443-spi", @@ -1546,6 +1559,9 @@ static const struct platform_device_id s3c64xx_spi_driver_ids[] = { }; static const struct of_device_id s3c64xx_spi_dt_match[] = { + { .compatible = "google,gs101-spi", + .data = &gs101_spi_port_config, + }, { .compatible = "samsung,s3c2443-spi", .data = (void *)&s3c2443_spi_port_config, },