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author | Takashi Iwai <tiwai@suse.de> | 2023-08-28 16:13:03 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2023-08-28 16:13:03 +0200 |
commit | 692f5510159c79bfa312a4e27a15e266232bfb4c (patch) | |
tree | d58825a761ff8b525a9565f30f3bc47bc6b47147 /sound/soc/codecs/l3.c | |
parent | ab574d1629552b6831cd91b926b38092c15d6142 (diff) | |
parent | 199cd64140f222c66b68ebe288a3fcd0570e2e41 (diff) | |
download | linux-stable-692f5510159c79bfa312a4e27a15e266232bfb4c.tar.gz linux-stable-692f5510159c79bfa312a4e27a15e266232bfb4c.tar.bz2 linux-stable-692f5510159c79bfa312a4e27a15e266232bfb4c.zip |
Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.6
The rest of the updates for v6.6, some of the highlights include:
- A big API cleanup from Morimoto-san, rationalising the places we put
functions.
- Lots of work on the SOF framework, AMD and Intel drivers, including a
lot of cleanup and new device support.
- Standardisation of the presentation of jacks from drivers.
- Provision of some generic sound card DT properties.
- Conversion oof more drivers to the maple tree register cache.
- New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
JH7110.
Diffstat (limited to 'sound/soc/codecs/l3.c')
-rw-r--r-- | sound/soc/codecs/l3.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/sound/soc/codecs/l3.c b/sound/soc/codecs/l3.c deleted file mode 100644 index b84f6f1f6800..000000000000 --- a/sound/soc/codecs/l3.c +++ /dev/null @@ -1,132 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * L3 code - * - * Copyright (C) 2008, Christian Pellegrin <chripell@evolware.org> - * - * based on: - * - * L3 bus algorithm module. - * - * Copyright (C) 2001 Russell King, All Rights Reserved. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/gpio.h> - -#include <sound/l3.h> - -/* - * Send one byte of data to the chip. Data is latched into the chip on - * the rising edge of the clock. - */ -static void sendbyte(struct l3_pins *adap, unsigned int byte) -{ - int i; - - for (i = 0; i < 8; i++) { - adap->setclk(adap, 0); - udelay(adap->data_hold); - adap->setdat(adap, byte & 1); - udelay(adap->data_setup); - adap->setclk(adap, 1); - udelay(adap->clock_high); - byte >>= 1; - } -} - -/* - * Send a set of bytes to the chip. We need to pulse the MODE line - * between each byte, but never at the start nor at the end of the - * transfer. - */ -static void sendbytes(struct l3_pins *adap, const u8 *buf, - int len) -{ - int i; - - for (i = 0; i < len; i++) { - if (i) { - udelay(adap->mode_hold); - adap->setmode(adap, 0); - udelay(adap->mode); - } - adap->setmode(adap, 1); - udelay(adap->mode_setup); - sendbyte(adap, buf[i]); - } -} - -int l3_write(struct l3_pins *adap, u8 addr, u8 *data, int len) -{ - adap->setclk(adap, 1); - adap->setdat(adap, 1); - adap->setmode(adap, 1); - udelay(adap->mode); - - adap->setmode(adap, 0); - udelay(adap->mode_setup); - sendbyte(adap, addr); - udelay(adap->mode_hold); - - sendbytes(adap, data, len); - - adap->setclk(adap, 1); - adap->setdat(adap, 1); - adap->setmode(adap, 0); - - return len; -} -EXPORT_SYMBOL_GPL(l3_write); - - -static void l3_set_clk(struct l3_pins *adap, int val) -{ - gpio_set_value(adap->gpio_clk, val); -} - -static void l3_set_data(struct l3_pins *adap, int val) -{ - gpio_set_value(adap->gpio_data, val); -} - -static void l3_set_mode(struct l3_pins *adap, int val) -{ - gpio_set_value(adap->gpio_mode, val); -} - -int l3_set_gpio_ops(struct device *dev, struct l3_pins *adap) -{ - int ret; - - if (!adap->use_gpios) - return -EINVAL; - - ret = devm_gpio_request_one(dev, adap->gpio_data, - GPIOF_OUT_INIT_LOW, "l3_data"); - if (ret < 0) - return ret; - adap->setdat = l3_set_data; - - ret = devm_gpio_request_one(dev, adap->gpio_clk, - GPIOF_OUT_INIT_LOW, "l3_clk"); - if (ret < 0) - return ret; - adap->setclk = l3_set_clk; - - ret = devm_gpio_request_one(dev, adap->gpio_mode, - GPIOF_OUT_INIT_LOW, "l3_mode"); - if (ret < 0) - return ret; - adap->setmode = l3_set_mode; - - return 0; -} -EXPORT_SYMBOL_GPL(l3_set_gpio_ops); - -MODULE_DESCRIPTION("L3 bit-banging driver"); -MODULE_AUTHOR("Christian Pellegrin <chripell@evolware.org>"); -MODULE_LICENSE("GPL"); |