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AJvYcCU32xLtQ1QQLWrxTW/kyqqZYP+fHPhfbPyeqaVOKQLD2HA57nLNf9YWtMEa95OXFtduTLWodXkiHR7Z9g==@vger.kernel.org X-Gm-Message-State: AOJu0Yzh5Vog9tBXMHSsmnRiaMzqsbKmCIMI+59Tba/1KBUcBqjv2hdC Lt7eS3fwUI3BbGqRin5jNnTKdEmsuAe0ILn5wpxPNkGTqhZ+qJLoUPvyK5n11oYx6DyQtdgsDny H3cC7XnaGI2a+4QktqID1YA/TXkIE56M= X-Gm-Gg: ASbGncu7qpW/6FeH0UGaOMhaP18GaifhoG4+3rx7h/Ou65k4oEVYP9gP7gTlu58WdnL 9VZg+cHgoYFuHkS2G5sbjov+91Q/++jweGrrpupAl0LEmqsy5oFya/kxTI+Z1Atbik2R/f8Weea ko7J91RfLlrwh1JrPDl0U34CL+2FryIrwJBdiWWJWrTBZk2NPyta1UgnUeotY9ahust3HdisAUH bxHbkufBCLKpnhe1qtoeDQDpfZT6zEUj9Hw8S9H+KfbCqkWPI8yslqmrfJPbQ== X-Google-Smtp-Source: AGHT+IHBY2IUN83Pw2ENBSOgJpr4Jc1uqt5wNDK5R+8Ap8x+c1BNaeQ/FRba66e2cv8DRUxHfZF+WnI79kMwhHazwpc= X-Received: by 2002:a17:907:c11:b0:b46:897b:d759 with SMTP id a640c23a62f3a-b647443b9c2mr1867846866b.40.1761036647265; Tue, 21 Oct 2025 01:50:47 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20251020-staging-fbtft-ra8875-usleep-v1-1-9592dd390c13@lukowski.dev> In-Reply-To: <20251020-staging-fbtft-ra8875-usleep-v1-1-9592dd390c13@lukowski.dev> From: Andy Shevchenko Date: Tue, 21 Oct 2025 11:50:11 +0300 X-Gm-Features: AS18NWBqAmjo3KOZJeoj3rpQJcbhQ65NoVyhN4fDfDmM2riHc6TQ9QZuK7Sh_wM Message-ID: Subject: Re: [PATCH] staging: fbtft: fb_ra8875: replace udelay with usleep_range To: Olle Lukowski Cc: Andy Shevchenko , Greg Kroah-Hartman , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Oct 20, 2025 at 10:16=E2=80=AFPM Olle Lukowski = wrote: > > Replace udelay(100) calls with usleep_range(100, 200) to allow the > scheduler to yield instead of busy-waiting. This is the preferred API for > sleep durations above 10 microseconds. ... > - udelay(100); > + usleep_range(100, 200); Besides what Greg said, the function in similar changes should be fsleep(), it will automatically choose the best low-level API for the given delay. --=20 With Best Regards, Andy Shevchenko