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path: root/drivers/i2c/lpc32xx_i2c.c
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2023-01-20global: Finish CONFIG -> CFG migrationTom Rini1-8/+8
At this point, the remaining places where we have a symbol that is defined as CONFIG_... are in fairly odd locations. While as much dead code has been removed as possible, some of these locations are simply less obvious at first. In other cases, this code is used, but was defined in such a way as to have been missed by earlier checks. Perform a rename of all such remaining symbols to be CFG_... rather than CONFIG_... Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-06lpc32xx: i2c: finish DM/OF codeTrevor Woerner1-1/+7
Add the of_match/compatible string to the lpc32xx i2c driver so it works correctly with device-tree. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-07-06lpc32xx: i2c: fix base addressTrevor Woerner1-5/+1
The lpc32xx driver was not obtaining the per-device base address correctly from the device tree. Fix the FIXME in order to get the correct base address. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-07-06lpc32xx: i2c: remove unused defineTrevor Woerner1-1/+0
The LPC32XX_I2C_STAT_DRMI is not used anywhere so remove it. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-02-21dm: i2c: use CONFIG_IS_ENABLED macro for DM_I2C/DM_I2C_GPIOIgor Opaniuk1-2/+2
Use CONFIG_IS_ENABLED() macro, which provides more convenient way to check $(SPL)DM_I2C/$(SPL)DM_I2C_GPIO configs for both SPL and U-Boot proper. CONFIG_IS_ENABLED(DM_I2C) expands to: - 1 if CONFIG_SPL_BUILD is undefined and CONFIG_DM_I2C is set to 'y', - 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_DM_I2C is set to 'y', - 0 otherwise. All occurences were replaced automatically using these bash cmds: $ find . -type f -exec sed -i 's/ifndef CONFIG_DM_I2C/if !CONFIG_IS_ENABLED(DM_I2C)/g' {} + $ find . -type f -exec sed -i 's/ifdef CONFIG_DM_I2C/if CONFIG_IS_ENABLED(DM_I2C)/g' {} + $ find . -type f -exec sed -i 's/defined(CONFIG_DM_I2C)/CONFIG_IS_ENABLED(DM_I2C)/g' {} + $ find . -type f -exec sed -i 's/ifndef CONFIG_DM_I2C_GPIO/if !CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} + $ find . -type f -exec sed -i 's/ifdef CONFIG_DM_I2C_GPIO/if CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} + $ find . -type f -exec sed -i 's/defined(CONFIG_DM_I2C_GPIO)/CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} + Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-12-19dm: Avoid accessing seq directlySimon Glass1-1/+5
At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass1-5/+5
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop log.h from common headerSimon Glass1-0/+1
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini1-2/+1
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-03-28i2c: lpc32xx: Force consistent bus numberingLiam Beguin1-0/+1
Normally, this would probably be done by adding devicetree aliases to the main dtsi file for the lpc32xx and using bus->req_seq instead. Since we want to have consistent i2c numbering, we cannot force the bus->req_seq because. If for instance we have 3 buses numbered from 0 to 2 with i2c0 enabled, i2c1 disabled and i2c2 enabled; i2c2 can be selected using 'i2c dev 1' and 'i2c dev 2' commands because a bus can be probed using req_seq or seq interchangeably. Signed-off-by: Liam Beguin <lbeguin@tycoint.com> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2017-03-28i2c: lpc32xx: Move definitions to header fileLiam Beguin1-27/+1
Since the lpc32xx i2c driver does not yet support the devicetree bindings, this structure is also needed by the board file as the hardware description is done there. Signed-off-by: Liam Beguin <lbeguin@tycoint.com> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2017-03-28i2c: lpc32xx: Remove note for DM conversationSylvain Lemieux1-3/+0
Removed note in the LPC32xx I2C driver for DM conversation. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2017-03-28i2c: lpc32xx: Add DM for lpc32xx I2CLiam Beguin1-0/+90
Adding DM specific wrapper functions and definitions. Signed-off-by: Liam Beguin <lbeguin@tycoint.com> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2017-03-28i2c: lpc32xx: Factor out i2c_adapter parameterLiam Beguin1-54/+53
This is part of the prep work for the migration to the driver model. It will enable the driver to support DM and non-DM configurations using the same functions. Signed-off-by: Liam Beguin <lbeguin@tycoint.com> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2017-03-28i2c: lpc32xx: Prepare compatibility functionsLiam Beguin1-9/+38
This is part of the prep work for the migration to the driver model. Signed-off-by: Liam Beguin <lbeguin@tycoint.com> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2017-03-28i2c: lpc32xx: Rename probe functionLiam Beguin1-3/+3
This is part of the prep work for the migration to the driver model. What used to be the probe function is now called probe_chip. Signed-off-by: Liam Beguin <lbeguin@tycoint.com> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2016-12-05dm: i2c: Add a note to I2C drivers which need conversionSimon Glass1-0/+3
Maintainers need to be notified more directly of the need to convert these drivers. Add a note to the top each affected file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de>
2016-09-24treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada1-1/+1
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
2015-08-18i2c: lpc32xx: correct sanity check for requested bus speedVladimir Zapolskiy1-11/+11
LPC32xx has 3 I2C bus controllers, 2 of them are used as generic ones and their parent clock is HCLK and CLK_HI/CLK_LO registers are 10 bit wide. This means that if HCLK is 104MHz, then minimal configurable I2C clock speed is about 51KHz. Only USB OTG I2C bus controller CLK registers are 8 bit wide, thus in assumption that peripheral clock is 13MHz it allows to set the minimal bus speed about 25.5KHz. Check for negative half clock value is removed since it is always false. The change fixes the following problem for I2C busses 0 and 1: => i2c dev 0 Setting bus to 0 => i2c speed 100000 Setting bus speed to 100000 Hz Failure changing bus speed (-22) Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Tested-by: Sylvain Lemieux <slemieux@tycoint.com>
2015-08-18i2c: lpc32xx: add support for OTG I2CSylvain Lemieux1-3/+17
Updated the LPC32xx I2C driver to support the OTG I2C that is part of the USB module. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com> Acked-by: Marek Vasut <marex@denx.de>
2015-08-17i2c: lpc32xx: fix write timeoutSylvain Lemieux1-0/+2
Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_write" when parameters alen = 0 and len = 0. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2015-08-17i2c: lpc32xx: fix read timeoutSylvain Lemieux1-5/+5
Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_read" when parameters alen != 0 and len = 0. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2015-08-17i2c: lpc32xx: use api to get hclk instead of fix valueSylvain Lemieux1-1/+1
The HCLK is not constant and can take different value; use the api function to get the value of the HCLK for the I2C clock high and low computation. Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
2015-04-10lpc32xx: i2c: add LPC32xx I2C interface supportAlbert ARIBAUD \(3ADEV\)1-0/+249
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
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