From: Bryan Wu <bryan.wu-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
To: dbrownell-Rn4VEauK+AKRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: Bryan Wu <bryan.wu-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Michael Hennerich
<michael.hennerich-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 02/14] Blackfin SPI driver: use new GPIO API and add error handling
Date: Tue, 30 Oct 2007 17:17:53 +0800 [thread overview]
Message-ID: <1193735885-8202-3-git-send-email-bryan.wu@analog.com> (raw)
In-Reply-To: <1193735885-8202-1-git-send-email-bryan.wu-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
From: Michael Hennerich <michael.hennerich-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Michael Hennerich <michael.hennerich-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Bryan Wu <bryan.wu-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
---
drivers/spi/spi_bfin5xx.c | 29 +++++++++++++++++++++++------
include/asm-blackfin/mach-bf533/portmux.h | 2 +-
2 files changed, 24 insertions(+), 7 deletions(-)
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 621a3eb..eeaa65d 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -1165,6 +1165,22 @@ static inline int destroy_queue(struct driver_data *drv_data)
return 0;
}
+static int setup_pin_mux(int action)
+{
+
+ u16 pin_req[] = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0};
+
+ if (action) {
+ if (peripheral_request_list(pin_req, DRV_NAME)) {
+ return -EFAULT;
+ }
+ } else {
+ peripheral_free_list(pin_req);
+ }
+
+ return 0;
+}
+
static int __init bfin5xx_spi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -1182,12 +1198,9 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
return -ENOMEM;
}
- if (peripheral_request(P_SPI0_SCK, DRV_NAME) ||
- peripheral_request(P_SPI0_MISO, DRV_NAME) ||
- peripheral_request(P_SPI0_MOSI, DRV_NAME) ) {
-
+ if (setup_pin_mux(1)) {
dev_err(&pdev->dev, ": Requesting Peripherals failed\n");
- goto out_error_queue_alloc;
+ goto out_error;
}
drv_data = spi_master_get_devdata(master);
@@ -1223,9 +1236,11 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "controller probe successfully\n");
return status;
- out_error_queue_alloc:
+out_error_queue_alloc:
destroy_queue(drv_data);
+out_error:
spi_master_put(master);
+
return status;
}
@@ -1255,6 +1270,8 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev)
/* Disconnect from the SPI framework */
spi_unregister_master(drv_data->master);
+ setup_pin_mux(0);
+
/* Prevent double remove */
platform_set_drvdata(pdev, NULL);
diff --git a/include/asm-blackfin/mach-bf533/portmux.h b/include/asm-blackfin/mach-bf533/portmux.h
index b88d7a0..137f488 100644
--- a/include/asm-blackfin/mach-bf533/portmux.h
+++ b/include/asm-blackfin/mach-bf533/portmux.h
@@ -42,7 +42,7 @@
#define P_SPORT0_DRPRI (P_DONTCARE)
#define P_SPI0_MOSI (P_DONTCARE)
-#define P_SPI0_MIS0 (P_DONTCARE)
+#define P_SPI0_MISO (P_DONTCARE)
#define P_SPI0_SCK (P_DONTCARE)
#define P_SPI0_SSEL7 (P_DEFINED | P_IDENT(GPIO_PF7))
#define P_SPI0_SSEL6 (P_DEFINED | P_IDENT(GPIO_PF6))
--
1.5.3.4
-------------------------------------------------------------------------
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next prev parent reply other threads:[~2007-10-30 9:17 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-30 9:17 [PATCH 00/14] Blackfin on-chip SPI controller driver updates and bug-fixing Bryan Wu
[not found] ` <1193735885-8202-1-git-send-email-bryan.wu-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
2007-10-30 9:17 ` [PATCH 01/14] Blackfin SPI driver: Initial supporting BF54x in SPI driver Bryan Wu
2007-10-30 9:17 ` Bryan Wu [this message]
2007-10-30 9:17 ` [PATCH 03/14] Blackfin SPI driver: add error handing Bryan Wu
2007-10-30 9:17 ` [PATCH 04/14] Blackfin SPI driver: Blackfin SPI driver does not respect the per-transfer cs_change field Bryan Wu
2007-10-30 9:17 ` [PATCH 05/14] Blackfin SPI driver: prevent people from setting bits in ctl_reg Bryan Wu
2007-10-30 9:17 ` [PATCH 06/14] Blackfin SPI driver: update spi driver to support multi-ports Bryan Wu
2007-10-30 9:17 ` [PATCH 07/14] Blackfin SPI driver: Add SPI master controller platform device 1 Bryan Wu
2007-10-30 19:08 ` David Brownell
[not found] ` <200710301208.13367.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-31 4:18 ` Bryan Wu
2007-10-30 9:17 ` [PATCH 08/14] Blackfin SPI driver: Move GPIO config to setup and cleanup Bryan Wu
2007-10-30 9:18 ` [PATCH 09/14] Blackfin SPI driver: Fix SPI driver to work with SPI flash ST25P16 on bf548 Bryan Wu
2007-10-30 20:05 ` David Brownell
2007-10-31 6:50 ` Bryan Wu
2007-10-31 7:11 ` David Brownell
[not found] ` <200710310011.33545.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-31 7:35 ` Bryan Wu
2007-10-31 8:02 ` David Brownell
[not found] ` <200710310102.36542.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-31 8:52 ` Bryan Wu
2007-10-31 8:33 ` Mike Frysinger
[not found] ` <8bd0f97a0710310133m7b5cbbf3j545a489c401185df-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-10-31 19:01 ` David Brownell
[not found] ` <200710311201.29643.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-31 19:16 ` Mike Frysinger
[not found] ` <8bd0f97a0710311216l25f89b37v356fd44d7c1999da-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-10-31 20:14 ` David Brownell
2007-10-30 9:18 ` [PATCH 10/14] Blackfin SPI driver: Clean up useless wait in bfin SPI driver Bryan Wu
2007-10-30 9:18 ` [PATCH 11/14] Blackfin SPI driver: Move global SPI regs_base and dma_ch to struct driver_data Bryan Wu
2007-10-30 9:18 ` [PATCH 12/14] Blackfin SPI driver: Fix bug in u16_cs_chg_reader to read data_len-2 bytes data firstly, then read out the last 2 bytes data Bryan Wu
2007-10-30 9:18 ` [PATCH 13/14] Blackfin SPI driver: Move cs_chg_udelay to cs_deactive to fix bug when some SPI LCD driver needs delay after cs_deactive Bryan Wu
[not found] ` <1193735885-8202-14-git-send-email-bryan.wu-OyLXuOCK7orQT0dZR+AlfA@public.gmane.org>
2007-10-30 20:18 ` David Brownell
[not found] ` <200710301319.00071.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-31 6:30 ` Bryan Wu
2007-10-31 19:04 ` Cameron Barfield
2007-10-30 9:18 ` [PATCH 14/14] Blackfin SPI driver: set correct baud for spi mmc and enable SPI after DMA Bryan Wu
2007-10-30 20:24 ` [PATCH 00/14] Blackfin on-chip SPI controller driver updates and bug-fixing David Brownell
[not found] ` <200710301324.07691.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-30 20:29 ` Mike Frysinger
[not found] ` <8bd0f97a0710301329i8a21b22ncc9f71a81bc06543-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-10-30 20:42 ` David Brownell
[not found] ` <200710301342.18559.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2007-10-30 20:54 ` David Brownell
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