34 MODULE_DESCRIPTION("PXA2xx SSP SPI Controller");
41  * for testing SSCR1 changes that require SSP restart, basically
299  * Read and write LPSS SSP private registers. Caller must first check that
316  * lpss_ssp_setup - perform LPSS SSP specific setup
319  * Perform LPSS SSP specific setup. This function must be called first if
320  * one is going to use LPSS SSP private registers.
452 	/* Wait until SSP becomes idle before deasserting the CS */  in cs_deassert()
623 	/* Stop and reset SSP */  in int_error_stop()
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()
1101 		/* stop the SSP, and update the other bits */  in pxa2xx_spi_transfer_one()
1108 		/* restart the SSP */  in pxa2xx_spi_transfer_one()
1153 	/* Stop and reset SSP */  in pxa2xx_spi_slave_abort()
1174 	/* Disable the SSP */  in pxa2xx_spi_handle_err()
1199 	/* Disable the SSP now */  in pxa2xx_spi_unprepare_transfer()
1451  * autoloading and probing in this module but matching the LPSS SSP type.
1527 	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
1570 	struct ssp_device *ssp;  in pxa2xx_spi_init_pdata()  local
1593 	ssp = &pdata->ssp;  in pxa2xx_spi_init_pdata()
1596 	ssp->mmio_base = devm_ioremap_resource(&pdev->dev, res);  in pxa2xx_spi_init_pdata()
1597 	if (IS_ERR(ssp->mmio_base))  in pxa2xx_spi_init_pdata()
1598 		return ERR_CAST(ssp->mmio_base);  in pxa2xx_spi_init_pdata()
1600 	ssp->phys_base = res->start;  in pxa2xx_spi_init_pdata()
1610 	ssp->clk = devm_clk_get(&pdev->dev, NULL);  in pxa2xx_spi_init_pdata()
1611 	if (IS_ERR(ssp->clk))  in pxa2xx_spi_init_pdata()
1612 		return ERR_CAST(ssp->clk);  in pxa2xx_spi_init_pdata()
1614 	ssp->irq = platform_get_irq(pdev, 0);  in pxa2xx_spi_init_pdata()
1615 	if (ssp->irq < 0)  in pxa2xx_spi_init_pdata()
1616 		return ERR_PTR(ssp->irq);  in pxa2xx_spi_init_pdata()
1618 	ssp->type = type;  in pxa2xx_spi_init_pdata()
1619 	ssp->dev = &pdev->dev;  in pxa2xx_spi_init_pdata()
1620 	ssp->port_id = pxa2xx_spi_get_port_id(&pdev->dev);  in pxa2xx_spi_init_pdata()
1665 	struct ssp_device *ssp;  in pxa2xx_spi_probe()  local
1679 	ssp = pxa_ssp_request(pdev->id, pdev->name);  in pxa2xx_spi_probe()
1680 	if (!ssp)  in pxa2xx_spi_probe()
1681 		ssp = &platform_info->ssp;  in pxa2xx_spi_probe()
1683 	if (!ssp->mmio_base) {  in pxa2xx_spi_probe()
1684 		dev_err(&pdev->dev, "failed to get ssp\n");  in pxa2xx_spi_probe()
1695 		pxa_ssp_free(ssp);  in pxa2xx_spi_probe()
1702 	drv_data->ssp = ssp;  in pxa2xx_spi_probe()
1708 	controller->bus_num = ssp->port_id;  in pxa2xx_spi_probe()
1721 	drv_data->ssp_type = ssp->type;  in pxa2xx_spi_probe()
1723 	drv_data->ioaddr = ssp->mmio_base;  in pxa2xx_spi_probe()
1724 	drv_data->ssdr_physical = ssp->phys_base + SSDR;  in pxa2xx_spi_probe()
1748 	status = request_irq(ssp->irq, ssp_int, IRQF_SHARED, dev_name(dev),  in pxa2xx_spi_probe()
1751 		dev_err(&pdev->dev, "cannot get IRQ %d\n", ssp->irq);  in pxa2xx_spi_probe()
1770 	status = clk_prepare_enable(ssp->clk);  in pxa2xx_spi_probe()
1774 	controller->max_speed_hz = clk_get_rate(ssp->clk);  in pxa2xx_spi_probe()
1786 	/* Load default SSP configuration */  in pxa2xx_spi_probe()
1907 	clk_disable_unprepare(ssp->clk);  in pxa2xx_spi_probe()
1911 	free_irq(ssp->irq, drv_data);  in pxa2xx_spi_probe()
1915 	pxa_ssp_free(ssp);  in pxa2xx_spi_probe()
1922 	struct ssp_device *ssp = drv_data->ssp;  in pxa2xx_spi_remove()  local
1928 	/* Disable the SSP at the peripheral and SOC level */  in pxa2xx_spi_remove()
1930 	clk_disable_unprepare(ssp->clk);  in pxa2xx_spi_remove()
1940 	free_irq(ssp->irq, drv_data);  in pxa2xx_spi_remove()
1942 	/* Release SSP */  in pxa2xx_spi_remove()
1943 	pxa_ssp_free(ssp);  in pxa2xx_spi_remove()
1952 	struct ssp_device *ssp = drv_data->ssp;  in pxa2xx_spi_suspend()  local
1961 		clk_disable_unprepare(ssp->clk);  in pxa2xx_spi_suspend()
1969 	struct ssp_device *ssp = drv_data->ssp;  in pxa2xx_spi_resume()  local
1972 	/* Enable the SSP clock */  in pxa2xx_spi_resume()
1974 		status = clk_prepare_enable(ssp->clk);  in pxa2xx_spi_resume()
1989 	clk_disable_unprepare(drv_data->ssp->clk);  in pxa2xx_spi_runtime_suspend()
1998 	status = clk_prepare_enable(drv_data->ssp->clk);  in pxa2xx_spi_runtime_resume()