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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-12 12:05:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-12 12:05:15 -0800
commitd027db132b395dabfac208e52a7e510e441bb9d2 (patch)
tree24b055b2385f9848e77e646ce475991d8675c3c4 /drivers/uio
parentd01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (diff)
parent5faf7cbb848da827f6ea1458b5a1c26a44e7510a (diff)
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC updates from Olof Johansson: "This contains the bulk of new SoC development for this merge window. Two new platforms have been added, the sunxi platforms (Allwinner A1x SoCs) by Maxime Ripard, and a generic Broadcom platform for a new series of ARMv7 platforms from them, where the hope is that we can keep the platform code generic enough to have them all share one mach directory. The new Broadcom platform is contributed by Christian Daudt. Highbank has grown support for Calxeda's next generation of hardware, ECX-2000. clps711x has seen a lot of cleanup from Alexander Shiyan, and he's also taken on maintainership of the platform. Beyond this there has been a bunch of work from a number of people on converting more platforms to IRQ domains, pinctrl conversion, cleanup and general feature enablement across most of the active platforms." Fix up trivial conflicts as per Olof. * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits) mfd: vexpress-sysreg: Remove LEDs code irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids irq: versatile: delete dangling variable ARM: sunxi: add missing include for mdelay() ARM: EXYNOS: Avoid early use of of_machine_is_compatible() ARM: dts: add node for PL330 MDMA1 controller for exynos4 ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412 ARM: EXYNOS: add UART3 to DEBUG_LL ports ARM: S3C24XX: Add clkdev entry for camif-upll clock ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers ARM: sunxi: Add missing sun4i.dtsi file pinctrl: samsung: Do not initialise statics to 0 ARM i.MX6: remove gate_mask from pllv3 ARM i.MX6: Fix ethernet PLL clocks ARM i.MX6: rename PLLs according to datasheet ARM i.MX6: Add pwm support ARM i.MX51: Add pwm support ARM i.MX53: Add pwm support ARM: mx5: Replace clk_register_clkdev with clock DT lookup ...
Diffstat (limited to 'drivers/uio')
-rw-r--r--drivers/uio/Kconfig1
-rw-r--r--drivers/uio/uio_pruss.c24
2 files changed, 18 insertions, 7 deletions
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
index 82e2b89d448..f56d185790e 100644
--- a/drivers/uio/Kconfig
+++ b/drivers/uio/Kconfig
@@ -113,6 +113,7 @@ config UIO_NETX
config UIO_PRUSS
tristate "Texas Instruments PRUSS driver"
depends on ARCH_DAVINCI_DA850
+ select GENERIC_ALLOCATOR
help
PRUSS driver for OMAPL138/DA850/AM18XX devices
PRUSS driver requires user space components, examples and user space
diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index cce0f78341c..6e2ab007fe9 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -25,7 +25,7 @@
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
-#include <mach/sram.h>
+#include <linux/genalloc.h>
#define DRV_NAME "pruss_uio"
#define DRV_VERSION "1.0"
@@ -65,10 +65,11 @@ struct uio_pruss_dev {
dma_addr_t sram_paddr;
dma_addr_t ddr_paddr;
void __iomem *prussio_vaddr;
- void *sram_vaddr;
+ unsigned long sram_vaddr;
void *ddr_vaddr;
unsigned int hostirq_start;
unsigned int pintc_base;
+ struct gen_pool *sram_pool;
};
static irqreturn_t pruss_handler(int irq, struct uio_info *info)
@@ -106,7 +107,9 @@ static void pruss_cleanup(struct platform_device *dev,
gdev->ddr_paddr);
}
if (gdev->sram_vaddr)
- sram_free(gdev->sram_vaddr, sram_pool_sz);
+ gen_pool_free(gdev->sram_pool,
+ gdev->sram_vaddr,
+ sram_pool_sz);
kfree(gdev->info);
clk_put(gdev->pruss_clk);
kfree(gdev);
@@ -152,10 +155,17 @@ static int pruss_probe(struct platform_device *dev)
goto out_free;
}
- gdev->sram_vaddr = sram_alloc(sram_pool_sz, &(gdev->sram_paddr));
- if (!gdev->sram_vaddr) {
- dev_err(&dev->dev, "Could not allocate SRAM pool\n");
- goto out_free;
+ if (pdata->sram_pool) {
+ gdev->sram_pool = pdata->sram_pool;
+ gdev->sram_vaddr =
+ gen_pool_alloc(gdev->sram_pool, sram_pool_sz);
+ if (!gdev->sram_vaddr) {
+ dev_err(&dev->dev, "Could not allocate SRAM pool\n");
+ goto out_free;
+ }
+ gdev->sram_paddr =
+ gen_pool_virt_to_phys(gdev->sram_pool,
+ gdev->sram_vaddr);
}
gdev->ddr_vaddr = dma_alloc_coherent(&dev->dev, extram_pool_sz,