diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2009-10-29 17:18:02 +0100 |
|---|---|---|
| committer | Dinh Nguyen <Dinh.Nguyen@freescale.com> | 2010-07-22 13:45:42 -0500 |
| commit | c5d7f63d4d63a0986c3e50b81bb26cb899ca495e (patch) | |
| tree | b1188a9837d3bd2c9304fcc977bb0d44c4a3ae2f /arch | |
| parent | 26cf50e777e4ba585d2644f8fb625f817f2d1f5f (diff) | |
mxc: iomux v3: remove resource handling
The current model does not allow to put a pad into different modes
once a pins is allocated. Remove the resource handling.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/iomux-v3.h | 17 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/iomux-v3.c | 36 |
2 files changed, 3 insertions, 50 deletions
diff --git a/arch/arm/plat-mxc/include/mach/iomux-v3.h b/arch/arm/plat-mxc/include/mach/iomux-v3.h index a0fa40265468..1deda0184892 100644 --- a/arch/arm/plat-mxc/include/mach/iomux-v3.h +++ b/arch/arm/plat-mxc/include/mach/iomux-v3.h @@ -88,9 +88,7 @@ struct pad_desc { #define PAD_CTL_SRE_FAST (1 << 0) /* - * setups a single pad: - * - reserves the pad so that it is not claimed by another driver - * - setups the iomux according to the configuration + * setups a single pad in the iomuxer */ int mxc_iomux_v3_setup_pad(struct pad_desc *pad); @@ -101,19 +99,6 @@ int mxc_iomux_v3_setup_pad(struct pad_desc *pad); int mxc_iomux_v3_setup_multiple_pads(struct pad_desc *pad_list, unsigned count); /* - * releases a single pad: - * - make it available for a future use by another driver - * - DOES NOT reconfigure the IOMUX in its reset state - */ -void mxc_iomux_v3_release_pad(struct pad_desc *pad); - -/* - * releases multiple pads - * convenvient way to call the above function with tables - */ -void mxc_iomux_v3_release_multiple_pads(struct pad_desc *pad_list, int count); - -/* * Initialise the iomux controller */ void mxc_iomux_v3_init(void __iomem *iomux_v3_base); diff --git a/arch/arm/plat-mxc/iomux-v3.c b/arch/arm/plat-mxc/iomux-v3.c index 851ca99bf1b1..b318c6a222d5 100644 --- a/arch/arm/plat-mxc/iomux-v3.c +++ b/arch/arm/plat-mxc/iomux-v3.c @@ -31,19 +31,11 @@ static void __iomem *base; -static unsigned long iomux_v3_pad_alloc_map[0x200 / BITS_PER_LONG]; - /* - * setups a single pin: - * - reserves the pin so that it is not claimed by another driver - * - setups the iomux according to the configuration + * setups a single pad in the iomuxer */ int mxc_iomux_v3_setup_pad(struct pad_desc *pad) { - unsigned int pad_ofs = pad->pad_ctrl_ofs; - - if (test_and_set_bit(pad_ofs >> 2, iomux_v3_pad_alloc_map)) - return -EBUSY; if (pad->mux_ctrl_ofs) __raw_writel(pad->mux_mode, base + pad->mux_ctrl_ofs); @@ -66,37 +58,13 @@ int mxc_iomux_v3_setup_multiple_pads(struct pad_desc *pad_list, unsigned count) for (i = 0; i < count; i++) { ret = mxc_iomux_v3_setup_pad(p); if (ret) - goto setup_error; + return ret; p++; } return 0; - -setup_error: - mxc_iomux_v3_release_multiple_pads(pad_list, i); - return ret; } EXPORT_SYMBOL(mxc_iomux_v3_setup_multiple_pads); -void mxc_iomux_v3_release_pad(struct pad_desc *pad) -{ - unsigned int pad_ofs = pad->pad_ctrl_ofs; - - clear_bit(pad_ofs >> 2, iomux_v3_pad_alloc_map); -} -EXPORT_SYMBOL(mxc_iomux_v3_release_pad); - -void mxc_iomux_v3_release_multiple_pads(struct pad_desc *pad_list, int count) -{ - struct pad_desc *p = pad_list; - int i; - - for (i = 0; i < count; i++) { - mxc_iomux_v3_release_pad(p); - p++; - } -} -EXPORT_SYMBOL(mxc_iomux_v3_release_multiple_pads); - void mxc_iomux_v3_init(void __iomem *iomux_v3_base) { base = iomux_v3_base; |