3c1f6e358d
Patches are generated using the "format-patch" command from the following location: *https://www.codeaurora.org/cgit/quic/kernel/galak-msm/log/?h=apq_ipq_base *rev=0771849495b4128cac2faf7d49c85c729fc48b20 Patches numbered 76/77/102/103 have already been integrated in 3.14.12, so they're not in this list. All these patches are either integrated are pending integration into kernel.org, therefore these patches should go away once the kernel gets upgraded to 3.16. Support is currently limited to AP148 board but can be extended to other platforms in the future. These changes do not cover ethernet connectivity. Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 42334
152 lines
4.5 KiB
Diff
152 lines
4.5 KiB
Diff
From 025909cbf933cc20c2ff5ea9f87de8e17a739a08 Mon Sep 17 00:00:00 2001
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From: Andy Gross <agross@codeaurora.org>
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Date: Thu, 24 Apr 2014 11:31:22 -0500
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Subject: [PATCH 087/182] tty: serial: msm: Remove direct access to GSBI
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This patch removes direct access of the GSBI registers. GSBI configuration
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should be done through the GSBI driver directly.
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Signed-off-by: Andy Gross <agross@codeaurora.org>
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Signed-off-by: Kumar Gala <galak@codeaurora.org>
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---
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drivers/tty/serial/msm_serial.c | 48 ++-------------------------------------
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drivers/tty/serial/msm_serial.h | 5 ----
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2 files changed, 2 insertions(+), 51 deletions(-)
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diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
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index 053b98e..778e376 100644
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--- a/drivers/tty/serial/msm_serial.c
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+++ b/drivers/tty/serial/msm_serial.c
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@@ -52,7 +52,6 @@ struct msm_port {
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struct clk *clk;
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struct clk *pclk;
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unsigned int imr;
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- void __iomem *gsbi_base;
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int is_uartdm;
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unsigned int old_snap_state;
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};
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@@ -599,9 +598,7 @@ static const char *msm_type(struct uart_port *port)
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static void msm_release_port(struct uart_port *port)
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{
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struct platform_device *pdev = to_platform_device(port->dev);
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- struct msm_port *msm_port = UART_TO_MSM(port);
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struct resource *uart_resource;
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- struct resource *gsbi_resource;
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resource_size_t size;
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uart_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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@@ -612,28 +609,12 @@ static void msm_release_port(struct uart_port *port)
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release_mem_region(port->mapbase, size);
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iounmap(port->membase);
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port->membase = NULL;
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-
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- if (msm_port->gsbi_base) {
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- writel_relaxed(GSBI_PROTOCOL_IDLE,
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- msm_port->gsbi_base + GSBI_CONTROL);
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-
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- gsbi_resource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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- if (unlikely(!gsbi_resource))
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- return;
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-
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- size = resource_size(gsbi_resource);
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- release_mem_region(gsbi_resource->start, size);
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- iounmap(msm_port->gsbi_base);
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- msm_port->gsbi_base = NULL;
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- }
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}
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static int msm_request_port(struct uart_port *port)
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{
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- struct msm_port *msm_port = UART_TO_MSM(port);
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struct platform_device *pdev = to_platform_device(port->dev);
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struct resource *uart_resource;
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- struct resource *gsbi_resource;
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resource_size_t size;
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int ret;
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@@ -652,30 +633,8 @@ static int msm_request_port(struct uart_port *port)
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goto fail_release_port;
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}
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- gsbi_resource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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- /* Is this a GSBI-based port? */
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- if (gsbi_resource) {
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- size = resource_size(gsbi_resource);
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-
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- if (!request_mem_region(gsbi_resource->start, size,
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- "msm_serial")) {
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- ret = -EBUSY;
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- goto fail_release_port_membase;
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- }
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-
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- msm_port->gsbi_base = ioremap(gsbi_resource->start, size);
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- if (!msm_port->gsbi_base) {
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- ret = -EBUSY;
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- goto fail_release_gsbi;
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- }
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- }
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-
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return 0;
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-fail_release_gsbi:
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- release_mem_region(gsbi_resource->start, size);
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-fail_release_port_membase:
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- iounmap(port->membase);
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fail_release_port:
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release_mem_region(port->mapbase, size);
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return ret;
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@@ -683,7 +642,6 @@ fail_release_port:
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static void msm_config_port(struct uart_port *port, int flags)
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{
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- struct msm_port *msm_port = UART_TO_MSM(port);
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int ret;
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if (flags & UART_CONFIG_TYPE) {
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port->type = PORT_MSM;
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@@ -691,9 +649,6 @@ static void msm_config_port(struct uart_port *port, int flags)
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if (ret)
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return;
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}
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- if (msm_port->gsbi_base)
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- writel_relaxed(GSBI_PROTOCOL_UART,
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- msm_port->gsbi_base + GSBI_CONTROL);
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}
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static int msm_verify_port(struct uart_port *port, struct serial_struct *ser)
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@@ -1110,6 +1065,7 @@ static struct of_device_id msm_match_table[] = {
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static struct platform_driver msm_platform_driver = {
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.remove = msm_serial_remove,
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+ .probe = msm_serial_probe,
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.driver = {
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.name = "msm_serial",
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.owner = THIS_MODULE,
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@@ -1125,7 +1081,7 @@ static int __init msm_serial_init(void)
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if (unlikely(ret))
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return ret;
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- ret = platform_driver_probe(&msm_platform_driver, msm_serial_probe);
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+ ret = platform_driver_register(&msm_platform_driver);
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if (unlikely(ret))
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uart_unregister_driver(&msm_uart_driver);
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diff --git a/drivers/tty/serial/msm_serial.h b/drivers/tty/serial/msm_serial.h
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index 1e9b68b..d98d45e 100644
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--- a/drivers/tty/serial/msm_serial.h
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+++ b/drivers/tty/serial/msm_serial.h
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@@ -109,11 +109,6 @@
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#define UART_ISR 0x0014
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#define UART_ISR_TX_READY (1 << 7)
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-#define GSBI_CONTROL 0x0
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-#define GSBI_PROTOCOL_CODE 0x30
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-#define GSBI_PROTOCOL_UART 0x40
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-#define GSBI_PROTOCOL_IDLE 0x0
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-
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#define UARTDM_RXFS 0x50
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#define UARTDM_RXFS_BUF_SHIFT 0x7
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#define UARTDM_RXFS_BUF_MASK 0x7
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--
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1.7.10.4
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