36 MODULE_DESCRIPTION("PXA2xx SSP SPI Controller");
43  * For testing SSCR1 changes that require SSP restart, basically
310  * Read and write LPSS SSP private registers. Caller must first check that
327  * lpss_ssp_setup - perform LPSS SSP specific setup
330  * Perform LPSS SSP specific setup. This function must be called first if
331  * one is going to use LPSS SSP private registers.
339 	drv_data->lpss_base = drv_data->ssp->mmio_base + config->offset;  in lpss_ssp_setup()
458 	/* Wait until SSP becomes idle before deasserting the CS */  in cs_deassert()
500 	pxa_ssp_disable(drv_data->ssp);  in pxa2xx_spi_off()
639 	dev_err(drv_data->ssp->dev, "%s\n", msg);  in int_error_stop()
735 	dev_err(drv_data->ssp->dev, "bad message state in interrupt handler\n");  in handle_bad_msg()
751 	if (pm_runtime_suspended(drv_data->ssp->dev))  in ssp_int()
913 	const struct ssp_device *ssp = drv_data->ssp;  in ssp_get_clk_div()  local
919 	 * that the SSP transmission rate can be greater than the device rate.  in ssp_get_clk_div()
921 	if (ssp->type == PXA25x_SSP || ssp->type == CE4100_SSP)  in ssp_get_clk_div()
1100 	/* Stop the SSP */  in pxa2xx_spi_transfer_one()
1102 		pxa_ssp_disable(drv_data->ssp);  in pxa2xx_spi_transfer_one()
1113 	/* Restart the SSP */  in pxa2xx_spi_transfer_one()
1114 	pxa_ssp_enable(drv_data->ssp);  in pxa2xx_spi_transfer_one()
1163 	/* Disable the SSP */  in pxa2xx_spi_handle_err()
1181 	/* Disable the SSP now */  in pxa2xx_spi_unprepare_transfer()
1444  * autoloading and probing in this module but matching the LPSS SSP type.
1533 	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
1576 	struct ssp_device *ssp;  in pxa2xx_spi_init_pdata()  local
1599 	ssp = &pdata->ssp;  in pxa2xx_spi_init_pdata()
1602 	ssp->mmio_base = devm_ioremap_resource(&pdev->dev, res);  in pxa2xx_spi_init_pdata()
1603 	if (IS_ERR(ssp->mmio_base))  in pxa2xx_spi_init_pdata()
1604 		return ERR_CAST(ssp->mmio_base);  in pxa2xx_spi_init_pdata()
1606 	ssp->phys_base = res->start;  in pxa2xx_spi_init_pdata()
1616 	ssp->clk = devm_clk_get(&pdev->dev, NULL);  in pxa2xx_spi_init_pdata()
1617 	if (IS_ERR(ssp->clk))  in pxa2xx_spi_init_pdata()
1618 		return ERR_CAST(ssp->clk);  in pxa2xx_spi_init_pdata()
1620 	ssp->irq = platform_get_irq(pdev, 0);  in pxa2xx_spi_init_pdata()
1621 	if (ssp->irq < 0)  in pxa2xx_spi_init_pdata()
1622 		return ERR_PTR(ssp->irq);  in pxa2xx_spi_init_pdata()
1624 	ssp->type = type;  in pxa2xx_spi_init_pdata()
1625 	ssp->dev = &pdev->dev;  in pxa2xx_spi_init_pdata()
1626 	ssp->port_id = pxa2xx_spi_get_port_id(&pdev->dev);  in pxa2xx_spi_init_pdata()
1641 	if (has_acpi_companion(drv_data->ssp->dev)) {  in pxa2xx_spi_fw_translate_cs()
1671 	struct ssp_device *ssp;  in pxa2xx_spi_probe()  local
1685 	ssp = pxa_ssp_request(pdev->id, pdev->name);  in pxa2xx_spi_probe()
1686 	if (!ssp)  in pxa2xx_spi_probe()
1687 		ssp = &platform_info->ssp;  in pxa2xx_spi_probe()
1689 	if (!ssp->mmio_base) {  in pxa2xx_spi_probe()
1690 		dev_err(&pdev->dev, "failed to get SSP\n");  in pxa2xx_spi_probe()
1707 	drv_data->ssp = ssp;  in pxa2xx_spi_probe()
1715 	controller->bus_num = ssp->port_id;  in pxa2xx_spi_probe()
1728 	drv_data->ssp_type = ssp->type;  in pxa2xx_spi_probe()
1753 	status = request_irq(ssp->irq, ssp_int, IRQF_SHARED, dev_name(dev),  in pxa2xx_spi_probe()
1756 		dev_err(&pdev->dev, "cannot get IRQ %d\n", ssp->irq);  in pxa2xx_spi_probe()
1775 	status = clk_prepare_enable(ssp->clk);  in pxa2xx_spi_probe()
1779 	controller->max_speed_hz = clk_get_rate(ssp->clk);  in pxa2xx_spi_probe()
1791 	pxa_ssp_disable(ssp);  in pxa2xx_spi_probe()
1793 	/* Load default SSP configuration */  in pxa2xx_spi_probe()
1882 	clk_disable_unprepare(ssp->clk);  in pxa2xx_spi_probe()
1886 	free_irq(ssp->irq, drv_data);  in pxa2xx_spi_probe()
1889 	pxa_ssp_free(ssp);  in pxa2xx_spi_probe()
1896 	struct ssp_device *ssp = drv_data->ssp;  in pxa2xx_spi_remove()  local
1902 	/* Disable the SSP at the peripheral and SOC level */  in pxa2xx_spi_remove()
1903 	pxa_ssp_disable(ssp);  in pxa2xx_spi_remove()
1904 	clk_disable_unprepare(ssp->clk);  in pxa2xx_spi_remove()
1914 	free_irq(ssp->irq, drv_data);  in pxa2xx_spi_remove()
1916 	/* Release SSP */  in pxa2xx_spi_remove()
1917 	pxa_ssp_free(ssp);  in pxa2xx_spi_remove()
1926 	struct ssp_device *ssp = drv_data->ssp;  in pxa2xx_spi_suspend()  local
1933 	pxa_ssp_disable(ssp);  in pxa2xx_spi_suspend()
1936 		clk_disable_unprepare(ssp->clk);  in pxa2xx_spi_suspend()
1944 	struct ssp_device *ssp = drv_data->ssp;  in pxa2xx_spi_resume()  local
1947 	/* Enable the SSP clock */  in pxa2xx_spi_resume()
1949 		status = clk_prepare_enable(ssp->clk);  in pxa2xx_spi_resume()
1964 	clk_disable_unprepare(drv_data->ssp->clk);  in pxa2xx_spi_runtime_suspend()
1973 	status = clk_prepare_enable(drv_data->ssp->clk);  in pxa2xx_spi_runtime_resume()