From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Viresh Kumar <viresh.linux@gmail.com>,
Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCHv2 1/4] dmaengine: dw_dmac: convert to platform driver
Date: Wed, 26 Sep 2012 15:40:34 +0300 [thread overview]
Message-ID: <1348663237-3237-2-git-send-email-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <1348663237-3237-1-git-send-email-andriy.shevchenko@linux.intel.com>
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
This driver could be used on different platforms. Thus, we converted it to be
a platform driver. The HAVE_CLK dependency is dropped away as well.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/dma/Kconfig | 2 --
drivers/dma/dw_dmac.c | 21 +++++++--------------
2 files changed, 7 insertions(+), 16 deletions(-)
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 677cd6e..75cdcb5 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -83,9 +83,7 @@ config INTEL_IOP_ADMA
config DW_DMAC
tristate "Synopsys DesignWare AHB DMA support"
- depends on HAVE_CLK
select DMA_ENGINE
- default y if CPU_AT32AP7000
help
Support the Synopsys DesignWare AHB DMA controller. This
can be integrated in chips such as the Atmel AT32ap7000.
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index c4b0eb3..9f0129d 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1,14 +1,15 @@
/*
- * Driver for the Synopsys DesignWare DMA Controller (aka DMACA on
- * AVR32 systems.)
+ * Core driver for the Synopsys DesignWare DMA Controller
*
* Copyright (C) 2007-2008 Atmel Corporation
* Copyright (C) 2010-2011 ST Microelectronics
+ * Copyright (C) 2012 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/delay.h>
@@ -222,7 +223,6 @@ static inline void dwc_dump_chan_regs(struct dw_dma_chan *dwc)
channel_readl(dwc, CTL_LO));
}
-
static inline void dwc_chan_disable(struct dw_dma *dw, struct dw_dma_chan *dwc)
{
channel_clear_bit(dw, CH_EN, dwc->mask);
@@ -1679,6 +1679,7 @@ static int dw_resume_noirq(struct device *dev)
clk_prepare_enable(dw->clk);
dma_writel(dw, CFG, DW_CFG_DMA_EN);
+
return 0;
}
@@ -1700,6 +1701,7 @@ MODULE_DEVICE_TABLE(of, dw_dma_id_table);
#endif
static struct platform_driver dw_driver = {
+ .probe = dw_probe,
.remove = __devexit_p(dw_remove),
.shutdown = dw_shutdown,
.driver = {
@@ -1709,18 +1711,9 @@ static struct platform_driver dw_driver = {
},
};
-static int __init dw_init(void)
-{
- return platform_driver_probe(&dw_driver, dw_probe);
-}
-subsys_initcall(dw_init);
-
-static void __exit dw_exit(void)
-{
- platform_driver_unregister(&dw_driver);
-}
-module_exit(dw_exit);
+module_platform_driver(dw_driver);
+MODULE_ALIAS("platform:dw_dmac");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller driver");
MODULE_AUTHOR("Haavard Skinnemoen (Atmel)");
--
1.7.10.4
next prev parent reply other threads:[~2012-09-26 12:40 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-25 12:13 [PATCHv1 0/6] dw_dmac: split the driver and introduce PCI part Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 1/6] dmaengine: dw_dmac: Remove clk API dependency Andy Shevchenko
2012-09-26 3:42 ` viresh kumar
2012-09-26 12:33 ` Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 2/6] dmaengine: dw_dmac: add driver for Atmel AT32 Andy Shevchenko
2012-09-26 3:50 ` viresh kumar
2012-09-26 6:47 ` Andy Shevchenko
2012-09-26 6:51 ` viresh kumar
2012-09-26 6:56 ` Andy Shevchenko
2012-09-26 3:52 ` viresh kumar
2012-09-25 12:13 ` [PATCHv1 3/6] dmaengine: dw_dmac: Add PCI part of the driver Andy Shevchenko
2012-09-26 4:00 ` viresh kumar
2012-09-26 7:48 ` Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 4/6] avr32: at32ap700x: rename DMA controller Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 5/6] MAINTAINERS: fix indentation for Viresh Kumar Andy Shevchenko
2012-09-26 3:36 ` viresh kumar
2012-09-26 7:10 ` Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 6/6] MAINTAINERS: add recently created files to dw_dmac section Andy Shevchenko
2012-09-25 13:19 ` Joe Perches
2012-09-25 13:37 ` Andy Shevchenko
2012-09-25 15:33 ` Vinod Koul
2012-09-25 16:57 ` Joe Perches
2012-09-26 6:44 ` Andy Shevchenko
2012-09-26 3:39 ` viresh kumar
2012-09-26 12:40 ` [PATCHv2 0/4] dw_dmac: split the driver and introduce PCI part Andy Shevchenko
2012-09-26 12:40 ` Andy Shevchenko [this message]
2012-09-26 14:13 ` [PATCHv2 1/4] dmaengine: dw_dmac: convert to platform driver viresh kumar
2012-09-26 18:00 ` Andy Shevchenko
2012-09-27 3:47 ` viresh kumar
2012-09-26 12:40 ` [PATCHv2 2/4] dmaengine: dw_dmac: Add PCI part of the driver Andy Shevchenko
2012-09-26 14:33 ` viresh kumar
2012-09-26 17:55 ` Andy Shevchenko
2012-09-26 19:41 ` Arnd Bergmann
2012-09-27 3:53 ` viresh kumar
2012-09-27 7:41 ` Arnd Bergmann
2012-09-27 14:22 ` Vinod Koul
2012-09-27 14:42 ` Arnd Bergmann
2012-09-26 12:40 ` [PATCHv2 3/4] dma: move dw_dmac driver to an own directory Andy Shevchenko
2012-09-26 14:53 ` viresh kumar
2012-09-26 17:50 ` Andy Shevchenko
2012-09-26 12:40 ` [PATCHv2 4/4] MAINTAINERS: add recently created files to dw_dmac section Andy Shevchenko
2012-09-26 14:45 ` viresh kumar
2012-09-26 14:48 ` viresh kumar
2012-09-26 17:49 ` Andy Shevchenko
2012-09-27 6:38 ` Andy Shevchenko
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