From: Mike Rapoport <r...@linux.ibm.com>

The unicore32 port is removed from the kernel.
There is no point to keep stale PWM driver for this architecture.
Signed-off-by: Mike Rapoport <r...@linux.ibm.com>
---
 drivers/pwm/Kconfig    |   9 ---
 drivers/pwm/Makefile   |   1 -
 drivers/pwm/pwm-puv3.c | 150 -----------------------------------------
 3 files changed, 160 deletions(-)
 delete mode 100644 drivers/pwm/pwm-puv3.c

diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index cb8d739067d2..7dbcf6973d33 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -370,15 +370,6 @@ config PWM_PCA9685
          To compile this driver as a module, choose M here: the module
          will be called pwm-pca9685.
 
-config PWM_PUV3
-       tristate "PKUnity NetBook-0916 PWM support"
-       depends on ARCH_PUV3
-       help
-         Generic PWM framework driver for PKUnity NetBook-0916.
-
-         To compile this driver as a module, choose M here: the module
-         will be called pwm-puv3.
-
 config PWM_PXA
        tristate "PXA PWM support"
        depends on ARCH_PXA || COMPILE_TEST
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index a59c710e98c7..2c2ba0a03557 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -34,7 +34,6 @@ obj-$(CONFIG_PWM_MTK_DISP)    += pwm-mtk-disp.o
 obj-$(CONFIG_PWM_MXS)          += pwm-mxs.o
 obj-$(CONFIG_PWM_OMAP_DMTIMER) += pwm-omap-dmtimer.o
 obj-$(CONFIG_PWM_PCA9685)      += pwm-pca9685.o
-obj-$(CONFIG_PWM_PUV3)         += pwm-puv3.o
 obj-$(CONFIG_PWM_PXA)          += pwm-pxa.o
 obj-$(CONFIG_PWM_RCAR)         += pwm-rcar.o
 obj-$(CONFIG_PWM_RENESAS_TPU)  += pwm-renesas-tpu.o
diff --git a/drivers/pwm/pwm-puv3.c b/drivers/pwm/pwm-puv3.c
deleted file mode 100644
index 9d0bd87a425e..000000000000
--- a/drivers/pwm/pwm-puv3.c
+++ /dev/null
@@ -1,150 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/unicore32/kernel/pwm.c
- *
- * Code specific to PKUnity SoC and UniCore ISA
- *
- *     Maintained by GUAN Xue-tao <g...@mprc.pku.edu.cn>
- *     Copyright (C) 2001-2010 Guan Xuetao
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/pwm.h>
-
-#include <asm/div64.h>
-#include <mach/hardware.h>
-
-struct puv3_pwm_chip {
-       struct pwm_chip chip;
-       void __iomem *base;
-       struct clk *clk;
-};
-
-static inline struct puv3_pwm_chip *to_puv3(struct pwm_chip *chip)
-{
-       return container_of(chip, struct puv3_pwm_chip, chip);
-}
-
-/*
- * period_ns = 10^9 * (PRESCALE + 1) * (PV + 1) / PWM_CLK_RATE
- * duty_ns   = 10^9 * (PRESCALE + 1) * DC / PWM_CLK_RATE
- */
-static int puv3_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
-                          int duty_ns, int period_ns)
-{
-       unsigned long period_cycles, prescale, pv, dc;
-       struct puv3_pwm_chip *puv3 = to_puv3(chip);
-       unsigned long long c;
-
-       c = clk_get_rate(puv3->clk);
-       c = c * period_ns;
-       do_div(c, 1000000000);
-       period_cycles = c;
-
-       if (period_cycles < 1)
-               period_cycles = 1;
-
-       prescale = (period_cycles - 1) / 1024;
-       pv = period_cycles / (prescale + 1) - 1;
-
-       if (prescale > 63)
-               return -EINVAL;
-
-       if (duty_ns == period_ns)
-               dc = OST_PWMDCCR_FDCYCLE;
-       else
-               dc = (pv + 1) * duty_ns / period_ns;
-
-       /*
-        * NOTE: the clock to PWM has to be enabled first
-        * before writing to the registers
-        */
-       clk_prepare_enable(puv3->clk);
-
-       writel(prescale, puv3->base + OST_PWM_PWCR);
-       writel(pv - dc, puv3->base + OST_PWM_DCCR);
-       writel(pv, puv3->base + OST_PWM_PCR);
-
-       clk_disable_unprepare(puv3->clk);
-
-       return 0;
-}
-
-static int puv3_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-       struct puv3_pwm_chip *puv3 = to_puv3(chip);
-
-       return clk_prepare_enable(puv3->clk);
-}
-
-static void puv3_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-       struct puv3_pwm_chip *puv3 = to_puv3(chip);
-
-       clk_disable_unprepare(puv3->clk);
-}
-
-static const struct pwm_ops puv3_pwm_ops = {
-       .config = puv3_pwm_config,
-       .enable = puv3_pwm_enable,
-       .disable = puv3_pwm_disable,
-       .owner = THIS_MODULE,
-};
-
-static int pwm_probe(struct platform_device *pdev)
-{
-       struct puv3_pwm_chip *puv3;
-       struct resource *r;
-       int ret;
-
-       puv3 = devm_kzalloc(&pdev->dev, sizeof(*puv3), GFP_KERNEL);
-       if (!puv3)
-               return -ENOMEM;
-
-       puv3->clk = devm_clk_get(&pdev->dev, "OST_CLK");
-       if (IS_ERR(puv3->clk))
-               return PTR_ERR(puv3->clk);
-
-       r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       puv3->base = devm_ioremap_resource(&pdev->dev, r);
-       if (IS_ERR(puv3->base))
-               return PTR_ERR(puv3->base);
-
-       puv3->chip.dev = &pdev->dev;
-       puv3->chip.ops = &puv3_pwm_ops;
-       puv3->chip.base = -1;
-       puv3->chip.npwm = 1;
-
-       ret = pwmchip_add(&puv3->chip);
-       if (ret < 0) {
-               dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
-               return ret;
-       }
-
-       platform_set_drvdata(pdev, puv3);
-       return 0;
-}
-
-static int pwm_remove(struct platform_device *pdev)
-{
-       struct puv3_pwm_chip *puv3 = platform_get_drvdata(pdev);
-
-       return pwmchip_remove(&puv3->chip);
-}
-
-static struct platform_driver puv3_pwm_driver = {
-       .driver = {
-               .name = "PKUnity-v3-PWM",
-       },
-       .probe = pwm_probe,
-       .remove = pwm_remove,
-};
-module_platform_driver(puv3_pwm_driver);
-
-MODULE_LICENSE("GPL v2");
-- 
2.26.2

Reply via email to