[PATCH 3/4] msm_serial: Add support for non-GSBI UARTDM devices
From: Stephen Boyd <hidden>
Date: 2013-08-19 21:40:59
Also in:
linux-arm-msm, linux-serial, lkml
Subsystem:
arm/qualcomm mailing list, the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Not all UARTDM hardware is part of a GSBI complex. Add support for these devices and fix a bug where we assumed uartdm meant the hardware was part of a GSBI complex. Cc: David Brown <redacted> Signed-off-by: Stephen Boyd <redacted> --- drivers/tty/serial/msm_serial.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 7631313..f42c805 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c@@ -670,7 +670,7 @@ static void msm_config_port(struct uart_port *port, int flags) if (ret) return; } - if (msm_port->is_uartdm) + if (msm_port->gsbi_base) writel_relaxed(GSBI_PROTOCOL_UART, msm_port->gsbi_base + GSBI_CONTROL); }
@@ -860,6 +860,11 @@ static struct uart_driver msm_uart_driver = { static atomic_t msm_uart_next_id = ATOMIC_INIT(0); +static const struct of_device_id msm_uartdm_table[] = { + { .compatible = "qcom,msm-uartdm" }, + { } +}; + static int __init msm_serial_probe(struct platform_device *pdev) { struct msm_port *msm_port;
@@ -879,7 +884,7 @@ static int __init msm_serial_probe(struct platform_device *pdev) port->dev = &pdev->dev; msm_port = UART_TO_MSM(port); - if (platform_get_resource(pdev, IORESOURCE_MEM, 1)) + if (of_match_device(msm_uartdm_table, &pdev->dev)) msm_port->is_uartdm = 1; else msm_port->is_uartdm = 0;
@@ -926,6 +931,7 @@ static int msm_serial_remove(struct platform_device *pdev) static struct of_device_id msm_match_table[] = { { .compatible = "qcom,msm-uart" }, + { .compatible = "qcom,msm-uartdm" }, {} };
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