From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: [RESEND 10/11] pwm: sti: Enable PWM Capture Date: Wed, 2 Mar 2016 15:32:08 +0000 Message-ID: <1456932729-9667-11-git-send-email-lee.jones@linaro.org> References: <1456932729-9667-1-git-send-email-lee.jones@linaro.org> Return-path: In-Reply-To: <1456932729-9667-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: kernel@stlinux.com, maxime.coquelin@st.com, thierry.reding@gmail.com, linux-pwm@vger.kernel.org, ajitpal.singh@st.com, Lee Jones List-Id: linux-pwm@vger.kernel.org Once all functionality is in place, we provide the means to enable PWM Capture. Here we are simply obtaining the associated regmap and twiddling the relevant enable register bits. Signed-off-by: Lee Jones --- drivers/pwm/pwm-sti.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c index 8de9b4a..93cf20e 100644 --- a/drivers/pwm/pwm-sti.c +++ b/drivers/pwm/pwm-sti.c @@ -279,6 +279,13 @@ static int sti_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) pwm->hwpwm); goto out; } + + ret = regmap_field_write(pc->pwm_cpt_en, 1); + if (ret) { + dev_err(dev, "failed to enable PWM capture:%d\n", + pwm->hwpwm); + goto out; + } } pc->en_count++; out: @@ -296,6 +303,7 @@ static void sti_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) return; } regmap_field_write(pc->pwm_out_en, 0); + regmap_field_write(pc->pwm_cpt_en, 0); clk_disable(pc->pwm_clk); clk_disable(pc->cpt_clk); @@ -492,6 +500,11 @@ static int sti_pwm_probe_dt(struct sti_pwm_chip *pc) if (IS_ERR(pc->pwm_out_en)) return PTR_ERR(pc->pwm_out_en); + pc->pwm_cpt_en = devm_regmap_field_alloc(dev, pc->regmap, + reg_fields[PWM_CPT_EN]); + if (IS_ERR(pc->pwm_cpt_en)) + return PTR_ERR(pc->pwm_cpt_en); + pc->pwm_cpt_int_en = devm_regmap_field_alloc(dev, pc->regmap, reg_fields[PWM_CPT_INT_EN]); if (IS_ERR(pc->pwm_cpt_int_en)) -- 1.9.1