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AJvYcCW5oIZUVZVFlY3twrMsAWlO9JI842czLMP93YGnCXf7QbYOLTw10V1P/yK7r1Cp2yxR9VTRyRdqFzlcBlQBa8YAsenV+zMsKBTFGX4= X-Gm-Message-State: AOJu0YxQfS6WHakE4kl7nvPD7gt/iReuJcq7JpQB1V1yHGRPnK5d0GL7 yR9bAxT8lo+6knKrhu5ZrmwRZHe0Hdt6rJHp7PDb78xH2Uaf9wbumAq6tbWPZL/M+HfuO98jmtu kn67r/fdXTsDwtt+MBwnzzQ28TsZ5OOeK X-Google-Smtp-Source: AGHT+IF1+0vxRvmRUWINjGzopDgrgXSdoJO/81rJkJR0w/gJjv8782tLukyv6IUMN4Wu5q+/dPS8x/uZhNPk X-Received: by 2002:a05:6512:290:b0:51d:7d4a:517e with SMTP id 2adb3069b0e04-527ef210aa5mr1916182e87.9.1716575281453; Fri, 24 May 2024 11:28:01 -0700 (PDT) Received: from raspberrypi.com ([188.39.149.98]) by smtp-relay.gmail.com with ESMTPS id 38308e7fff4ca-2e95bcd2393sm339921fa.6.2024.05.24.11.28.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 May 2024 11:28:01 -0700 (PDT) X-Relaying-Domain: raspberrypi.com From: Dave Stevenson To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , Ray Jui , Scott Branden , Vinod Koul , Maxime Ripard , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Ulf Hansson , Mark Brown , Christoph Hellwig , Marek Szyprowski , Robin Murphy , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Vladimir Murzin , Phil Elwell , Stefan Wahren , Serge Semin Cc: devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mmc@vger.kernel.org, linux-spi@vger.kernel.org, iommu@lists.linux.dev, linux-sound@vger.kernel.org, Dave Stevenson Subject: [PATCH 17/18] ASoC: bcm2835-i2s: Use phys addresses for DAI DMA Date: Fri, 24 May 2024 19:27:01 +0100 Message-Id: <20240524182702.1317935-18-dave.stevenson@raspberrypi.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240524182702.1317935-1-dave.stevenson@raspberrypi.com> References: <20240524182702.1317935-1-dave.stevenson@raspberrypi.com> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Phil Elwell Contrary to what struct snd_dmaengine_dai_dma_data suggests, the configuration of addresses of DMA slave interfaces should be done in CPU physical addresses. Signed-off-by: Phil Elwell Signed-off-by: Dave Stevenson --- sound/soc/bcm/bcm2835-i2s.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/sound/soc/bcm/bcm2835-i2s.c b/sound/soc/bcm/bcm2835-i2s.c index 9bda6499e66e..2d0fe53245f0 100644 --- a/sound/soc/bcm/bcm2835-i2s.c +++ b/sound/soc/bcm/bcm2835-i2s.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include @@ -830,8 +829,7 @@ static int bcm2835_i2s_probe(struct platform_device *pdev) struct bcm2835_i2s_dev *dev; int ret; void __iomem *base; - const __be32 *addr; - dma_addr_t dma_base; + struct resource *res; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); @@ -846,7 +844,7 @@ static int bcm2835_i2s_probe(struct platform_device *pdev) "could not get clk\n"); /* Request ioarea */ - base = devm_platform_ioremap_resource(pdev, 0); + base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(base)) return PTR_ERR(base); @@ -855,19 +853,11 @@ static int bcm2835_i2s_probe(struct platform_device *pdev) if (IS_ERR(dev->i2s_regmap)) return PTR_ERR(dev->i2s_regmap); - /* Set the DMA address - we have to parse DT ourselves */ - addr = of_get_address(pdev->dev.of_node, 0, NULL, NULL); - if (!addr) { - dev_err(&pdev->dev, "could not get DMA-register address\n"); - return -EINVAL; - } - dma_base = be32_to_cpup(addr); - dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK].addr = - dma_base + BCM2835_I2S_FIFO_A_REG; + res->start + BCM2835_I2S_FIFO_A_REG; dev->dma_data[SNDRV_PCM_STREAM_CAPTURE].addr = - dma_base + BCM2835_I2S_FIFO_A_REG; + res->start + BCM2835_I2S_FIFO_A_REG; /* Set the bus width */ dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK].addr_width =