From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: [[PATCH v2] 06/11] pwm: sti: Supply PWM Capture register addresses and bit locations Date: Fri, 22 Apr 2016 11:18:10 +0100 Message-ID: <1461320295-20414-7-git-send-email-lee.jones@linaro.org> References: <1461320295-20414-1-git-send-email-lee.jones@linaro.org> Return-path: Received: from mail-wm0-f41.google.com ([74.125.82.41]:36234 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752653AbcDVKSc (ORCPT ); Fri, 22 Apr 2016 06:18:32 -0400 Received: by mail-wm0-f41.google.com with SMTP id v188so15133940wme.1 for ; Fri, 22 Apr 2016 03:18:27 -0700 (PDT) In-Reply-To: <1461320295-20414-1-git-send-email-lee.jones@linaro.org> Sender: linux-pwm-owner@vger.kernel.org List-Id: linux-pwm@vger.kernel.org To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: kernel@stlinux.com, maxime.coquelin@st.com, linux-pwm@vger.kernel.org, thierry.reding@gmail.com, ajitpal.singh@st.com, Lee Jones Signed-off-by: Lee Jones --- drivers/pwm/pwm-sti.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c index c4a34af..2f61e1e 100644 --- a/drivers/pwm/pwm-sti.c +++ b/drivers/pwm/pwm-sti.c @@ -22,26 +22,48 @@ #include #define PWM_OUT_VAL(x) (0x00 + (4 * (x))) /* Device's Duty Cycle register */ +#define PWM_CPT_VAL(x) (0x10 + (4 * (x))) /* Capture value */ +#define PWM_CPT_EDGE(x) (0x30 + (4 * (x))) /* Edge to capture on */ #define STI_PWM_CTRL 0x50 /* Control/Config register */ #define STI_INT_EN 0x54 /* Interrupt Enable/Disable register */ +#define STI_INT_STA 0x58 /* Interrupt Status register */ +#define PWM_INT_ACK 0x5c #define PWM_PRESCALE_LOW_MASK 0x0f #define PWM_PRESCALE_HIGH_MASK 0xf0 +#define PWM_CPT_EDGE_MASK 0x03 +#define PWM_INT_ACK_MASK 0x1ff + +#define STI_MAX_CPT_DEVS 4 +#define CPT_DC_MAX 0xff /* Regfield IDs */ enum { /* Bits in PWM_CTRL*/ PWMCLK_PRESCALE_LOW, PWMCLK_PRESCALE_HIGH, + CPTCLK_PRESCALE, PWM_OUT_EN, + PWM_CPT_EN, PWM_CPT_INT_EN, + PWM_CPT_INT_STAT, /* Keep last */ MAX_REGFIELDS }; +/* Each capture input can be programmed to detect rising-edge, falling-edge, + * either edge or neither egde + */ +enum sti_cpt_edge { + CPT_EDGE_DISABLED, + CPT_EDGE_RISING, + CPT_EDGE_FALLING, + CPT_EDGE_BOTH, +}; + struct sti_pwm_compat_data { const struct reg_field *reg_fields; unsigned int num_devs; @@ -69,8 +91,11 @@ struct sti_pwm_chip { static const struct reg_field sti_pwm_regfields[MAX_REGFIELDS] = { [PWMCLK_PRESCALE_LOW] = REG_FIELD(STI_PWM_CTRL, 0, 3), [PWMCLK_PRESCALE_HIGH] = REG_FIELD(STI_PWM_CTRL, 11, 14), + [CPTCLK_PRESCALE] = REG_FIELD(STI_PWM_CTRL, 4, 8), [PWM_OUT_EN] = REG_FIELD(STI_PWM_CTRL, 9, 9), + [PWM_CPT_EN] = REG_FIELD(STI_PWM_CTRL, 10, 10), [PWM_CPT_INT_EN] = REG_FIELD(STI_INT_EN, 1, 4), + [PWM_CPT_INT_STAT] = REG_FIELD(STI_INT_STA, 1, 4), }; static inline struct sti_pwm_chip *to_sti_pwmchip(struct pwm_chip *chip) -- 2.8.0