From patchwork Mon Aug 28 13:14:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 718842 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20BA5C83F15 for ; Mon, 28 Aug 2023 13:22:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231627AbjH1NWI (ORCPT ); Mon, 28 Aug 2023 09:22:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231657AbjH1NVm (ORCPT ); Mon, 28 Aug 2023 09:21:42 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3705013E; Mon, 28 Aug 2023 06:21:38 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id C0EEF1FD6E; Mon, 28 Aug 2023 13:21:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1693228896; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ldw1MdaRpEpS7svygzNDrqBtCJfAtQHJJvySgzI7rd0=; b=bcNT1BK9I1tD98v3xdWzr0bMmjekx6ajdgM5vXUCRtjaKZztqQ7k1nK70+SpIt+MLG65IK HYwm56YO7FlLJn9NZyZXvk5Eu5buoljh51svd5F/sV9X55WLC9M5DokQhaRMGojzLKL39G G/uY2g0gnB0ZoJsbLcOOE/f8i5hhBH8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1693228896; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ldw1MdaRpEpS7svygzNDrqBtCJfAtQHJJvySgzI7rd0=; b=GbOqHAoa1Omaq6Uq6ROcQ8XZwpHs3Pr4RkEfZQ9zoUWDXiqMCHwOAK1exQoNUuzU066jK6 MD68OPa6h1u3enDw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 6B05213A1C; Mon, 28 Aug 2023 13:21:36 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id gDQ8GWCf7GTyOAAAMHmgww (envelope-from ); Mon, 28 Aug 2023 13:21:36 +0000 From: Thomas Zimmermann To: deller@gmx.de, daniel@ffwll.ch, sam@ravnborg.org, javierm@redhat.com Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-staging@lists.linux.dev, linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, Thomas Zimmermann , Jiri Kosina , Benjamin Tissoires , =?utf-8?q?Bruno_Pr?= =?utf-8?q?=C3=A9mont?= Subject: [PATCH 6/8] hid/picolcd: Use fb_ops helpers for deferred I/O Date: Mon, 28 Aug 2023 15:14:22 +0200 Message-ID: <20230828132131.29295-7-tzimmermann@suse.de> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230828132131.29295-1-tzimmermann@suse.de> References: <20230828132131.29295-1-tzimmermann@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Generate callback functions for struct fb_ops with the fbdev macro FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(). Initialize struct fb_ops to the generated functions with an fbdev initializer macro. Signed-off-by: Thomas Zimmermann Cc: Jiri Kosina Cc: Benjamin Tissoires Cc: "Bruno Prémont" Acked-by: Javier Martinez Canillas --- drivers/hid/Kconfig | 6 +-- drivers/hid/hid-picolcd_fb.c | 73 ++++++++++-------------------------- 2 files changed, 20 insertions(+), 59 deletions(-) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index b50054a41c10..dbf632bb7e26 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -871,11 +871,7 @@ config HID_PICOLCD_FB default !EXPERT depends on HID_PICOLCD depends on HID_PICOLCD=FB || FB=y - select FB_DEFERRED_IO - select FB_SYS_FILLRECT - select FB_SYS_COPYAREA - select FB_SYS_IMAGEBLIT - select FB_SYS_FOPS + select FB_SYSMEM_HELPERS_DEFERRED help Provide access to PicoLCD's 256x64 monochrome display via a framebuffer device. diff --git a/drivers/hid/hid-picolcd_fb.c b/drivers/hid/hid-picolcd_fb.c index d726aaafb146..a4dccdcda26f 100644 --- a/drivers/hid/hid-picolcd_fb.c +++ b/drivers/hid/hid-picolcd_fb.c @@ -283,54 +283,6 @@ static void picolcd_fb_update(struct fb_info *info) mutex_unlock(&info->lock); } -/* Stub to call the system default and update the image on the picoLCD */ -static void picolcd_fb_fillrect(struct fb_info *info, - const struct fb_fillrect *rect) -{ - if (!info->par) - return; - sys_fillrect(info, rect); - - schedule_delayed_work(&info->deferred_work, 0); -} - -/* Stub to call the system default and update the image on the picoLCD */ -static void picolcd_fb_copyarea(struct fb_info *info, - const struct fb_copyarea *area) -{ - if (!info->par) - return; - sys_copyarea(info, area); - - schedule_delayed_work(&info->deferred_work, 0); -} - -/* Stub to call the system default and update the image on the picoLCD */ -static void picolcd_fb_imageblit(struct fb_info *info, const struct fb_image *image) -{ - if (!info->par) - return; - sys_imageblit(info, image); - - schedule_delayed_work(&info->deferred_work, 0); -} - -/* - * this is the slow path from userspace. they can seek and write to - * the fb. it's inefficient to do anything less than a full screen draw - */ -static ssize_t picolcd_fb_write(struct fb_info *info, const char __user *buf, - size_t count, loff_t *ppos) -{ - ssize_t ret; - if (!info->par) - return -ENODEV; - ret = fb_sys_write(info, buf, count, ppos); - if (ret >= 0) - schedule_delayed_work(&info->deferred_work, 0); - return ret; -} - static int picolcd_fb_blank(int blank, struct fb_info *info) { /* We let fb notification do this for us via lcd/backlight device */ @@ -417,18 +369,31 @@ static int picolcd_set_par(struct fb_info *info) return 0; } +static void picolcdfb_ops_damage_range(struct fb_info *info, off_t off, size_t len) +{ + if (!info->par) + return; + schedule_delayed_work(&info->deferred_work, 0); +} + +static void picolcdfb_ops_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height) +{ + if (!info->par) + return; + schedule_delayed_work(&info->deferred_work, 0); +} + +FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(picolcdfb_ops, + picolcdfb_ops_damage_range, + picolcdfb_ops_damage_area) + static const struct fb_ops picolcdfb_ops = { .owner = THIS_MODULE, + FB_DEFAULT_DEFERRED_OPS(picolcdfb_ops), .fb_destroy = picolcd_fb_destroy, - .fb_read = fb_sys_read, - .fb_write = picolcd_fb_write, .fb_blank = picolcd_fb_blank, - .fb_fillrect = picolcd_fb_fillrect, - .fb_copyarea = picolcd_fb_copyarea, - .fb_imageblit = picolcd_fb_imageblit, .fb_check_var = picolcd_fb_check_var, .fb_set_par = picolcd_set_par, - .fb_mmap = fb_deferred_io_mmap, };