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Commit 5132361c authored by Mark Brown's avatar Mark Brown
Browse files

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bcm2835',... 

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bcm2835', 'spi/fix/doc', 'spi/fix/mediatek', 'spi/fix/meson', 'spi/fix/mtk' and 'spi/fix/pxa2xx' into spi-linus
parents 1f93e4a9 d630526d 2a3fffd4 0243ed44 e26d15f7 c9e97b3c 6583d203 02bc933e

Documentation/devicetree/bindings/spi/spi-mt65xx.txt

+10 −6
Original line number Diff line number Diff line
@@ -15,17 +15,18 @@ Required properties: 
- interrupts: Should contain spi interrupt



- clocks: phandles to input clocks.

  The first should be <&topckgen CLK_TOP_SPI_SEL>.

  The second should be one of the following.

  The first should be one of the following. It's PLL.

   -  <&clk26m>: specify parent clock 26MHZ.

   -  <&topckgen CLK_TOP_SYSPLL3_D2>: specify parent clock 109MHZ.

				      It's the default one.

   -  <&topckgen CLK_TOP_SYSPLL4_D2>: specify parent clock 78MHZ.

   -  <&topckgen CLK_TOP_UNIVPLL2_D4>: specify parent clock 104MHZ.

   -  <&topckgen CLK_TOP_UNIVPLL1_D8>: specify parent clock 78MHZ.

  The second should be <&topckgen CLK_TOP_SPI_SEL>. It's clock mux.

  The third is <&pericfg CLK_PERI_SPI0>. It's clock gate.



- clock-names: shall be "spi-clk" for the controller clock, and

  "parent-clk" for the parent clock.

- clock-names: shall be "parent-clk" for the parent clock, "sel-clk" for the

  muxes clock, and "spi-clk" for the clock gate.



Optional properties:

- mediatek,pad-select: specify which pins group(ck/mi/mo/cs) spi
@@ -44,8 +45,11 @@ spi: spi@1100a000 { 
	#size-cells = <0>;

	reg = <0 0x1100a000 0 0x1000>;

	interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;

	clocks = <&topckgen CLK_TOP_SPI_SEL>, <&topckgen CLK_TOP_SYSPLL3_D2>;

	clock-names = "spi-clk", "parent-clk";

	clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,

		 <&topckgen CLK_TOP_SPI_SEL>,

		 <&pericfg CLK_PERI_SPI0>;

	clock-names = "parent-clk", "sel-clk", "spi-clk";



	mediatek,pad-select = <0>;

	status = "disabled";

};

drivers/spi/spi-atmel.c

+2 −0
Original line number Diff line number Diff line
@@ -1720,6 +1720,7 @@ static int atmel_spi_runtime_resume(struct device *dev) 
	return clk_prepare_enable(as->clk);

}



#ifdef CONFIG_PM_SLEEP

static int atmel_spi_suspend(struct device *dev)

{

	struct spi_master *master = dev_get_drvdata(dev);
@@ -1756,6 +1757,7 @@ static int atmel_spi_resume(struct device *dev) 


	return ret;

}

#endif



static const struct dev_pm_ops atmel_spi_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(atmel_spi_suspend, atmel_spi_resume)

drivers/spi/spi-bcm2835.c

+3 −3
Original line number Diff line number Diff line
@@ -386,14 +386,14 @@ static bool bcm2835_spi_can_dma(struct spi_master *master, 
	/* otherwise we only allow transfers within the same page

	 * to avoid wasting time on dma_mapping when it is not practical

	 */

	if (((size_t)tfr->tx_buf & PAGE_MASK) + tfr->len > PAGE_SIZE) {

	if (((size_t)tfr->tx_buf & (PAGE_SIZE - 1)) + tfr->len > PAGE_SIZE) {

		dev_warn_once(&spi->dev,

			      "Unaligned spi tx-transfer bridging page\n");

		return false;

	}

	if (((size_t)tfr->rx_buf & PAGE_MASK) + tfr->len > PAGE_SIZE) {

	if (((size_t)tfr->rx_buf & (PAGE_SIZE - 1)) + tfr->len > PAGE_SIZE) {

		dev_warn_once(&spi->dev,

			      "Unaligned spi tx-transfer bridging page\n");

			      "Unaligned spi rx-transfer bridging page\n");

		return false;

	}

drivers/spi/spi-meson-spifc.c

+1 −0
Original line number Diff line number Diff line
@@ -444,6 +444,7 @@ static const struct of_device_id meson_spifc_dt_match[] = { 
	{ .compatible = "amlogic,meson6-spifc", },

	{ },

};

MODULE_DEVICE_TABLE(of, meson_spifc_dt_match);



static struct platform_driver meson_spifc_driver = {

	.probe	= meson_spifc_probe,

drivers/spi/spi-mt65xx.c

+23 −30
Original line number Diff line number Diff line
@@ -85,7 +85,7 @@ struct mtk_spi { 
	void __iomem *base;

	u32 state;

	u32 pad_sel;

	struct clk *spi_clk, *parent_clk;

	struct clk *parent_clk, *sel_clk, *spi_clk;

	struct spi_transfer *cur_transfer;

	u32 xfer_len;

	struct scatterlist *tx_sgl, *rx_sgl;
@@ -173,22 +173,6 @@ static void mtk_spi_config(struct mtk_spi *mdata, 
		writel(mdata->pad_sel, mdata->base + SPI_PAD_SEL_REG);

}



static int mtk_spi_prepare_hardware(struct spi_master *master)

{

	struct spi_transfer *trans;

	struct mtk_spi *mdata = spi_master_get_devdata(master);

	struct spi_message *msg = master->cur_msg;



	trans = list_first_entry(&msg->transfers, struct spi_transfer,

				 transfer_list);

	if (!trans->cs_change) {

		mdata->state = MTK_SPI_IDLE;

		mtk_spi_reset(mdata);

	}



	return 0;

}



static int mtk_spi_prepare_message(struct spi_master *master,

				   struct spi_message *msg)

{
@@ -228,11 +212,15 @@ static void mtk_spi_set_cs(struct spi_device *spi, bool enable) 
	struct mtk_spi *mdata = spi_master_get_devdata(spi->master);



	reg_val = readl(mdata->base + SPI_CMD_REG);

	if (!enable)

	if (!enable) {

		reg_val |= SPI_CMD_PAUSE_EN;

	else

		writel(reg_val, mdata->base + SPI_CMD_REG);

	} else {

		reg_val &= ~SPI_CMD_PAUSE_EN;

		writel(reg_val, mdata->base + SPI_CMD_REG);

		mdata->state = MTK_SPI_IDLE;

		mtk_spi_reset(mdata);

	}

}



static void mtk_spi_prepare_transfer(struct spi_master *master,
@@ -509,7 +497,6 @@ static int mtk_spi_probe(struct platform_device *pdev) 
	master->mode_bits = SPI_CPOL | SPI_CPHA;



	master->set_cs = mtk_spi_set_cs;

	master->prepare_transfer_hardware = mtk_spi_prepare_hardware;

	master->prepare_message = mtk_spi_prepare_message;

	master->transfer_one = mtk_spi_transfer_one;

	master->can_dma = mtk_spi_can_dma;
@@ -576,13 +563,6 @@ static int mtk_spi_probe(struct platform_device *pdev) 
		goto err_put_master;

	}



	mdata->spi_clk = devm_clk_get(&pdev->dev, "spi-clk");

	if (IS_ERR(mdata->spi_clk)) {

		ret = PTR_ERR(mdata->spi_clk);

		dev_err(&pdev->dev, "failed to get spi-clk: %d\n", ret);

		goto err_put_master;

	}



	mdata->parent_clk = devm_clk_get(&pdev->dev, "parent-clk");

	if (IS_ERR(mdata->parent_clk)) {

		ret = PTR_ERR(mdata->parent_clk);
@@ -590,13 +570,27 @@ static int mtk_spi_probe(struct platform_device *pdev) 
		goto err_put_master;

	}



	mdata->sel_clk = devm_clk_get(&pdev->dev, "sel-clk");

	if (IS_ERR(mdata->sel_clk)) {

		ret = PTR_ERR(mdata->sel_clk);

		dev_err(&pdev->dev, "failed to get sel-clk: %d\n", ret);

		goto err_put_master;

	}



	mdata->spi_clk = devm_clk_get(&pdev->dev, "spi-clk");

	if (IS_ERR(mdata->spi_clk)) {

		ret = PTR_ERR(mdata->spi_clk);

		dev_err(&pdev->dev, "failed to get spi-clk: %d\n", ret);

		goto err_put_master;

	}



	ret = clk_prepare_enable(mdata->spi_clk);

	if (ret < 0) {

		dev_err(&pdev->dev, "failed to enable spi_clk (%d)\n", ret);

		goto err_put_master;

	}



	ret = clk_set_parent(mdata->spi_clk, mdata->parent_clk);

	ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);

	if (ret < 0) {

		dev_err(&pdev->dev, "failed to clk_set_parent (%d)\n", ret);

		goto err_disable_clk;
@@ -630,7 +624,6 @@ static int mtk_spi_remove(struct platform_device *pdev) 
	pm_runtime_disable(&pdev->dev);



	mtk_spi_reset(mdata);

	clk_disable_unprepare(mdata->spi_clk);

	spi_master_put(master);



	return 0;